Argentine Zabaleta returns the ball to Davydenko of Russia during match at Grand Prix tennis tournament in Kitzbuehel. Argentine Mariano Zabaleta returns the ball to Nikolay Davydenko of Russia during a second round match at the ATP Grand Prix tennis tournament in Kitzbuehel, Austria July 27, 2005. Zabaleta won 6-4 7-6.REUTERS/Dominic Ebenbichler 

Russia's number one seed Davydenko reacts after losing to Argentina's Zabaleta in a second round match at ATP Grand Prix tennis tournament in Kitzbuehel. Russia's number one seed Nikolay Davydenko reacts after losing to Argentina's Mariano Zabaleta in a second round match at the ATP Grand Prix tennis tournament in Kitzbuehel, July 26, 2005. Zabaleta won 6-4 7-6. REUTERS/Dominic Ebenbichler 

Spain's David Ferrer returns a shot to Argentina's Mariano Zabaleta during the third round of the Monte Carlo Open Men's Singles matches in Monaco. Spain's David Ferrer returns a shot to Argentina's Mariano Zabaleta during the third round of the Monte Carlo Open Men's Singles matches in Monaco, April 14, 2005. 

Argentina's Zabaleta reacts after winning against France's Santoro during the second round of the Monte Carlo tennis Masters Series in Monaco. Argentina's Mariano Zabaleta reacts after winning against France's Fabrice Santoro during the second round of the Monte Carlo tennis Masters Series in Monaco April 13, 2005. Zabaleta beat Santoro 7-6 6-3 6-4. REUTERS/Pascal Deschamps 

Argentina's Zabaleta returns a backhand to France's Santoro during the second round of the Monte Carlo tennis Masters Series in Monaco. Argentina's Mariano Zabaleta returns a backhand to France's Fabrice Santoro during the second round of the Monte Carlo tennis Masters Series in Monaco April 13, 2005. Zabaleta beat Santoro 7-6 6-3 6-4. REUTERS/Pascal Deschamps 

Argentina's Mariano Zabaleta reacts after winning against [Britain's Tim Henman] at a first round tennis match of the Monte Carlo Masters Series in Monaco April 12, 2005. Zabaleta defeated [Henman] 6-4 4-6 6-2. 

Argentina's Zabaleta reacts after winning against Britain's Henman at a first round tennis match of the Monte Carlo Masters Series in Monaco. Argentina's Mariano Zabaleta reacts after winning against Britain's Tim Henman at a first round tennis match of the Monte Carlo Masters Series in Monaco April 12, 2005. Zabaleta defeated Henman 6-4 4-6 6-2. REUTERS/Pascal Deschamps 

Argentina's Zabaleta returns a backhand to Britain's Henman during the first round of Monte Carlo tennis Masters Series in Monaco. Argentina's Mariano Zabaleta returns a backhand to Britain's Tim Henman during the first round of Monte Carlo tennis Masters Series in Monaco April 12, 2005. Zabaleta defeated Henman 6-4 4-6 6-2. REUTERS/Pascal Deschamps 

Britain's Henman returns a backhand to Argentina's Mariano Zabaleta during the first round of Monte Carlo tennis Masters Series in Monaco. Britain's Tim Henman returns a backhand to Argentina's Mariano Zabaleta during the first round of Monte Carlo tennis Masters Series in Monaco, April 11, 2005. 

Roger Federer of Switzerland reacts to a point during third round match against Mariano Zabaleta at Nasdaq 100 Open. Roger Federer of Switzerland reacts to a point during his third round match against Mariano Zabaleta of Argentina at the Nasdaq-100 Open in Key Biscayne, Florida, March 28, 2005. Federer won the match 6-2 5-7 6-3. REUTERS/Gregory Shamus 

Mariano Zabaleta of Argentina hits a forehand during his third round match against Roger Federer of Switzerland at the Nasdaq-100 Open in Key Biscayne, Florida, March 28, 2005. REUTERS/Gregory Shamus GS 

Roger Federer of Switzerland hits a backhand during his third round match against Mariano Zabaleta of Argentina at the Nasdaq-100 Open in Key Biscayne, Florida, March 28, 2005. REUTERS/Gregory Shamus GS 

Argentine player Puerta returns the ball to compatriot Mariano Zabaleta during their Brazil open match in Bahia. Argentine player Mariano Puerta returns the ball to compatriot Mariano Zabaleta their Brazil Open ATP tournament match at Costa do Sauipe resort in the northern coastal state of Bahia, Brazil, February 15, 2005. REUTERS/Bruno Domingos 

Argentine player Mariano Puerta returns the ball to compatriot Mariano Zabaleta their Brazil Open ATP tournament match at Costa do Sauipe resort in the northern coastal state of Bahia, Brazil, February 15, 2005. REUTERS/Bruno Domingos BD 

Argentine player Zabaleta returns the ball to compatriot Oscar Puerta during their Brazil open match in Bahia. Argentine player Mariano Zabaleta returns the ball to compatriot Oscar Mariano Puerta in their Brazil Open ATP tournament match at Costa do Sauipe resort in the northern coastal state of Bahia, Brazil, February 15, 2005. REUTERS/Bruno Domingos 

Argentine player Zabaleta his eyes on the ball during his match against countryman Puerta during their Brazil open match in Bahia. Argentine player Mariano Zabaleta his eyes on the ball during his match against countryman Mariano Puerta in their Brazil Open ATP tournament match at Costa do Sauipe resort, in the northern coastal state of Bahia, Brazil, February 15, 2005. REUTERS/Bruno Domingos 

Alex Calatrava of Spain hits the ball to Argentine Mariano Zabaleta during their single match at the ATP tournament, in Buenos Aires, February 7, 2005. REUTERS/Enrique Marcarian EM 

Spanish player Alex Calatrava hits the ball to Argentine Mariano Zabaleta during their singles match at the ATP tournament, in Buenos Aires, February 7, 2005. REUTERS/Enrique Marcarian EM 

Argentina's Mariano Zabaleta eyes the ball during his match against Spanish player Alex Calatrava at the ATP tournament, in Buenos Aires, February 7, 2005. REUTERS/Enrique Marcarian EM 

Argentine player Zabaleta reacts after winning the first set of his match against Spanish player Calatrava. Argentina's Mariano Zabaleta reacts after winning the first set of his match against Spanish player Alex Calatrava, during their single match at the ATP tournament in Buenos Aires, February 7, 2005. REUTERS/Enrique Marcarian 

Argentine Mariano Zabaleta celebrates a point against Nicolas Lapentti of Ecuador in the first round of the ATP tournament of Vina del Mar, January 31, 2005. Zabaleta won the match 6-2 6-1. REUTERS/Rodrigo Garrido IA/SV 

Ecuadorian tennis player Nicolas Lapentti eyes the ball before returning to Mariano Zabaleta of Argentina in the first round of the ATP tournament in Vina del Mar, January 31, 2005. Zabaleta won the match, 6-2 6-1. REUTERS/Rodrigo Garrido IA 

Argentine tennis player Mariano Zabaleta plays a backhand to Nicolas Lapentti of Ecuador in the first round of the ATP tournament in Vina del Mar, January 31, 2005. Zabaleta won the game 6-2 6-1. REUTERS/Rodrigo Garrido IA 

Juan Carlos Ferrero of Spain celebrates his win over Mariano Zabaleta of Argentina at the 2005 Australian Open in Melbourne. Juan Carlos Ferrero of Spain celebrates his second round win over Mariano Zabaleta of Argentina at the 2005 Australian Open in Melbourne, January 20, 2005. Ferrero defeated Zabaleta in straight sets 6-1 6-2 6-0. REUTERS/Adrees Latif 

Juan Carlos Ferrero of Spain returns a backhand to Mariano Zabaleta of Argentina at the 2005 Australian Open tournament in Melbourne. Juan Carlos Ferrero of Spain returns a backhand to Mariano Zabaleta of Argentina in their second round match at the 2005 Australian Open tournament in Melbourne, January 20, 2005. Ferrero defeated Zabaleta in straight sets 6-1 6-2 6-0. REUTERS/Adrees Latif 

Zabaleta of Argentina serves during his match against Srichaphan of Thailand in the first round of the Paris-Bercy indoor tennis tournament. Mariano Zabaleta of Argentina serves during his match against Paradorn Srichaphan of Thailand in the first round of the Paris-Bercy indoor tennis tournament, November 1, 2004. Srichaphan defeated Zabaleta 7-6 6-4. REUTERS/Philippe Wojazer 

Zabaleta of Argentina reacts during his match against Srichaphan of Thailand in the first round of the Paris-Bercy indoor tennis tournament. Mariano Zabaleta of Argentina reacts during his match against Paradorn Srichaphan of Thailand in the first round of the Paris-Bercy indoor tennis tournament, November 1, 2004. Srichaphan defeated Zabaleta 7-6 6-4. REUTERS/Philippe Wojazer 

Srichaphan of Thailand reacts after winning his match against Zabaleta of Argentina in the first round of the Paris-Bercy indoor tennis tournament. Paradorn Srichaphan of Thailand reacts after winning his match against Mariano Zabaleta of Argentina in the first round of the Paris-Bercy indoor tennis tournament, November 1, 2004. Srichaphan defeated Zabaleta 7-6 6-4. REUTERS/Philippe Wojazer 

San Lorenzo de Almagro's Mariano Zabaleta (8) scores past River Plate goalie Franco Costanzo during the first half of their Argentine First Division soccer match in Buenos Aires, October 24, 2004. San Lorenzo won the match 2-1. REUTERS/Marcos Brindicci MBH 

Argentina's Mariano Zabaleta (L) and Juan Ignacio Chela bump their chests while joking at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/DL 

Argentina's Mariano Zabaleta (L) and Juan Ignacio Chela bump their chests while joking at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/DL 

Argentina's Juan Ignacio Chela jumps while joking with team mate Mariano Zabaleta at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/SV 

Argentina's Mariano Zabaleta rolls on the ground while joking with team mate Juan Ignacio Chela at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/DL 

Argentina's Mariano Zabaleta (L) and Juan Ignacio Chela bump their chests while joking at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/DL 

Argentina's Mariano Zabaleta (L) and Juan Ignacio Chela bump their chests while joking at a training session in the Olympic Tennis Centre in Athens, August 12, 2004. The tennis competition at the Athens 2004 Olympic Games starts on August 15. REUTERS/Carlos Barria RR/DL 

Tim Henman of Great Britain returns to Mariano Zabaleta of Argentina during their match at the Tennis Masters Canada tournament in Toronto, July 28, 2004. Henman defeated Zabaleta 6-4 6-1. REUTERS/Peter Jones PJ 

Tim Henman of Great Britain serves to Mariano Zabaleta of Argentina during their match at the Tennis Masters Canada tournament in Toronto, July 28, 2004. Henman defeated Zabaleta 6-4 6-1. REUTERS/Peter Jones PJ 

Argentina's Mariano Zabaleta returns a ball [to Chile's Nicolas Massu] during the quarter-final match at the Generali Open ATP tennis tournament in Kitzbuehel July 23, 2004. 

Chile's Massu reacts during the quarterfinal match against Argentina's Zabaleta at the Generali Open ATP tennis tournament in Kitzbuehel. Chile's Nicolas Massu reacts during the quarterfinal match against Argentina's Mariano Zabaleta at the Generali Open ATP tennis tournament in Kitzbuehel July 23, 2004. Massu won the match 7-6 7-6. REUTERS/Tobias Schwarz 

Argentina's Zabaleta reacts during the quarterfinal match against Chile's Massu at the Generali Open ATP tennis tournament in Kitzbuehel. Argentina's Mariano Zabaleta reacts during the quarterfinal match against Chile's Nicolas Massu at the Generali Open ATP tennis tournament in Kitzbuehel July 23, 2004. Massu won the match 7-6 7-6. REUTERS/Tobias Schwarz 

Chile's Massu serves to Argentina's Zabaleta during the quarterfinal match at the Generali Open tennis tournament in Kitzbuehel. Chile's Nicolas Massu serves to Argentina's Mariano Zabaleta during the quarterfinal match at the Generali Open tennis tournament in Kitzbuehel July 23, 2004. REUTERS/Tobias Schwarz 

Argentina's Zabaleta returns a ball to Chile's Massu during the quarter-final match at the Generali Open ATP tennis tournament in Kitzbuehel. Argentina's Mariano Zabaleta returns a ball to Chile's Nicolas Massu during the quarter-final match at the Generali Open ATP tennis tournament in Kitzbuehel July 23, 2004. REUTERS/Tobias Schwarz 

Argentina's Zabaleta returns a ball to Chile's Massu during quarter final match at Generali Open ATP tennis tournament in Kitzbuehel. Argentina's Mariano Zabaleta hits a double handed backhand to Chile's Nicolas Massu during the quarter final match at the Generali Open ATP tennis tournament in Kitzbuehel July 23, 2004. REUTERS/Tobias Schwarz 

ARGENTINIAN ZABALETA GESTURES DURING HIS MATCH AGAINST AUSTRALIAN PHILIPPOUSSIS AT TENNIS WORLD TEAM CUP IN DUSSELDORF. Argentinian Mariano Zabaleta gestures during his match against Australian Mark Philippoussis at the tennis World Team Cup in Dusseldorf, May 21, 2004. Philippoussis won the match 4-6 6-3 7-5. REUTERS/Ina Fassbender 

ARGENTINIAN ZABALETA HITS A RETURN TO AUSTRALIAN PHILIPPOUSSIS AT THE TENNIS WORLD TEAM CUP IN DUSSELDORF. Argentinian Mariano Zabaleta hits a double-handed backhand to Australian Mark Philippoussis during their match at the tennis World Team Cup in Dusseldorf, May 21, 2004. Philippoussis won the match 4-6 6-3 7-5. REUTERS/Ina Fassbender 

AUSTRALIAN PHILIPPOUSSIS HITS A RETURN TO ARGENTINIAN ZABALETA DURING THE TENNIS WORLD TEAM CUP IN DUSSELDORF. Australian Mark Philippoussis returns a ball to Argentinian Mariano Zabaleta during their match at the tennis World Team Cup in Dusseldorf, May 21, 2004. Philippoussis won the match 4-6 6-3 7-5. REUTERS/Ina Fassbender 

AUSTRALIAN PHILIPPOUSSIS CELEBRATES DURING HIS MATCH AGAINST ARGENTINIAN ZABALETA AT TENNIS WORLD TEAM CUP IN DUSSELDORF. Australian Mark Philippoussis celebrates during his match against Argentinian Mariano Zabaleta at the tennis World Team Cup in Dusseldorf, May 21, 2004. Philippoussis won the match 4-6 6-3 7-5. REUTERS/Ina Fassbender 

Argentine Mariano Zabaleta returns the ball to [Robby Ginepri from the U.S.] during their match at the tennis World Team Cup in Duesseldorf May 19, 2004. 

ARGENTINIAN ZABALETA RETURNS TO GINEPRI FROM THE U.S. DURING THEIR MATCH AT THE TENNIS WORLD TEAM CUP IN DUESSELDORF. Argentinian Mariano Zabaleta returns a ball to Robby Ginepri from the U.S. during their match at the tennis World Team Cup in Duesseldorf May 19, 2004. REUTERS/Ina Fassbender 

ARGENTINIAN ZABALETA RETURNS A BALL TO GINEPRI FROM THE U.S. DURING THEIR MATCH AT THE TENNIS WORLD TEAM CUP IN DUESSELDORF. Argentinian Mariano Zabaleta returns a ball to Robby Ginepri from the U.S. during their match at the tennis World Team Cup in Duesseldorf May 19, 2004. REUTERS/Ina Fassbender REUTERS 

ARGENTINE ZABALETA SERVES A BALL TO GINEPRI FROM THE U.S. DURING THEIR MATCH AT THE TENNIS WORLD TEAM CUP IN DUESSELDORF. Argentine Mariano Zabaleta serves a ball to Robby Ginepri from the U.S. during their match at the tennis World Team Cup in Duesseldorf May 19, 2004. REUTERS/Ina Fassbender 

ARGENTINE ZABALETA RETURNS THE BALL TO GINEPRI FROM THE U.S. DURING THEIR MATCH AT THE TENNIS WORLD TEAM CUP IN DUESSELDORF. Argentine Mariano Zabaleta returns the ball to Robby Ginepri from the U.S. during their match at the tennis World Team Cup in Duesseldorf May 19, 2004. REUTERS/Ina Fassbender 

Carlos Moya of Spain returns a backhand to [Mariano Zabaleta of Argentina] during their semi-final match at the Rome Masters May 8, 2004. [Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina.] 

Mariano Zabaleta of Argentina returns a backhand to [Carlos Moya of Spain] during their semi-final match at the Rome Masters May 8, 2004. [Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina.] 

A four-picture combination shows Argentine Mariano Zabaleta's reaction after losing a game during a semi-final match against Carlos Moya of Spain at the Rome Masters May 8, 2004. Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina. REUTERS/Giampiero Sposito GS/THI 

Carlos Moya of Spain returns a backhand to Mariano Zabaleta of Argentina during their semi-final match at the Rome Masters May 8, 2004. Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina. REUTERS/Giampiero Sposito GS/AA 

Mariano Zabaleta of Argentina returns a backhand to Carlos Moya of Spain during their semi-final match at the Rome Masters May 8, 2004. Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina. REUTERS/Giampiero Sposito GS/THI 

Carlos Moya of Spain eyes the ball as he serves to Mariano Zabaleta of Argentina during their semi-final match at the Rome Masters May 8, 2004. Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina. REUTERS/Giampiero Sposito GS/AA 

Carlos Moya of Spain shows his joy after winning a semi-final match against Mariano Zabaleta of Argentina at the Rome Masters May 8, 2004. Moya won 6-3, 6-4 and will play a final on Sunday against David Nalbandian of Argentina. REUTERS/Giampiero Sposito REUTERS GS/THI 

Romania's Andrei Pavel returns a backhand to Carlos Moya of Spain during their quarter-final match at the Rome Masters May 7, 2004. The winner of the match will play a semi-final against Mariano Zabaleta of Argentina on Saturday. REUTERS/Giampiero Sposito GS/JV