Rangers' Barry Ferguson (L) challenges Celtic's Barry Robson during their Scottish Premier League soccer match at Celtic Park, Scotland April 27, 2008. REUTERS//Russell Cheyne (BRITAIN) 

Celtic's Stephen McManus confronts Rangers' Barry Ferguson (R)during their Scottish Premier League match at Celtic Park in Glasgow, Scotland, April 16, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Celtic's Stephen McManus confronts Rangers' Barry Ferguson (R) during their Scottish Premier League match at Celtic Park in Glasgow, Scotland, April 16, 2008. REUTERS//Russell Cheyne (BRITAIN) 

Celtic's Stephen McManus (3rd L) grabs Rangers' Barry Ferguson (2nd L) as tempers flared between both teams at the end of the game after their Scottish Premier League 'Old Firm' soccer match in Glasgow, Scotland April 16, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Steven Whittaker (L), Barry Ferguson and Christian Dailly (R) celebrate their victory against Sporting at the end of their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Sporting's Tonel Sousa (L) gestures as Rangers' Barry Ferguson celebrates their second goal during their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Marcos Borga (PORTUGAL) 

Rangers' Jean-Claude Darcheville (19) celebrates his goal against Sporting with his team mate Barry Ferguson (R) during their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Rangers' Jean-Claude Darcheville (L) celebrates his goal with his team mate Barry Ferguson during their UEFA Cup quarter-final second leg soccer match against Sporting at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Rangers' Jean-Claude Darcheville (L) celebrates his goal against Sporting with his team mate Barry Ferguson during their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Rangers' Jean-Claude Darcheville celebrates his goal against Sporting with his team mate Barry Ferguson during their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Sporting's Miguel Veloso (R) fights for the ball Rangers' Barry Ferguson during their UEFA Cup quarter-final second leg soccer match at Alvalade stadium in Lisbon April 10, 2008. REUTERS/Nacho Doce (PORTUGAL) 

Sporting Lisbon's Leandro Grimi (18) tackles Rangers' Barry Ferguson during their UEFA Cup quarter final first leg soccer match at Ibrox stadium in Glasgow, Scotland April 3, 2008. REUTERS/David Moir (BRITAIN) 

Sporting Lisbon's Marat Izmailov (L) challenges Rangers' Barry Ferguson in the air during their UEFA Cup quarter-final first leg soccer match at Ibrox stadium in Glasgow, Scotland April 3, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (R) celebrates with Allan McGregor after their Scottish Premier League soccer match against Celtic at Ibrox stadium in Glasgow March 29, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson (L) challenges Celtic's Aiden McGeady during their Scottish Premier League soccer match at Ibrox stadium in Glasgow March 29, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson (L) challenges Celtic's Aiden McGeady during their Scottish Premier League soccer match at Ibrox stadium in Glasgow March 29, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Celtic's Lee Naylor (L) challenges Rangers' Barry Ferguson during their Scottish Premier League soccer match at Ibrox stadium in Glasgow March 29, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' team captain Barry Ferguson (L) jumps on goalkeeper Alan McGregor as they celebrate victory against Celtic after their Scottish Premier League soccer match in Glasgow, Scotland March 29, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Nacho Novo jumps on team captain Barry Ferguson as they celebrate victory against Celtic after their Scottish Premier League soccer match in Glasgow Scotland March 29, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Nacho Novo jumps on team captain Barry Ferguson as they celebrate victory against Celtic after their Scottish Premier League soccer match in Glasgow Scotland March 29, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (R) and Carlos Cuellar celebrate with team mates after their CIS Cup final soccer match against Dundee United at Hampden Park stadium in Glasgow, Scotland March 16, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (R) and Carlos Cuellar celebrate with team mates after their CIS Cup final soccer match against Dundee United at Hampden Park stadium in Glasgow, Scotland March 16, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (L) celebrates with team mate Lee McCulloch after their CIS Cup final soccer match against Dundee United at Hampden Park stadium in Glasgow, Scotland March 16, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson holds the winners trophy after their CIS Cup final soccer match against Dundee United at Hampden Park, Glasgow March 16, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson holds the winners trophy after their CIS Cup final soccer match against Dundee United at Hampden Park, Glasgow March 16, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson (L) tackles Dundee United's Prince Buaben during their CIS Cup Final soccer match at Hampden Park stadium in Glasgow, Scotland March 16, 2008. REUTERS/David Moir (BRITAIN) 

Diego (L) of Werder Bremen goes past Barry Ferguson and Brahim Hemdani (R) of Glasgow Rangers during their UEFA Cup soccer match in Bremen, March 13, 2008. REUTERS/Kai Pfaffenbach (GERMANY) 

Werder Bremen's Tim Borowski challenges Rangers' Barry Ferguson (L) during their UEFA Cup soccer match in Bremen March 13, 2008. REUTERS/Christian Charisius (GERMANY) 

Rangers' Barry Ferguson challenges Werder Bremen's Per Mertersacker (R) during their UEFA Cup soccer match at Ibrox stadium in Glasgow, Scotland March 6, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson challenges Werder Bremen's Frank Baumann during their UEFA Cup soccer match at Ibrox stadium in Glasgow, Scotland March 06, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson jumps on the shoulders of Daniel Cousin to celebrate after Steven Davis (not in picture) scored their second goal against Werder Bremen during their UEFA Cup soccer match at Ibrox Stadium in Glasgow, Scotland March 6, 2008. REUTERS/David Moir (BRITAIN) 

Glasgow Rangers' Barry Ferguson (top) celebrates with team mate Ignacio Novo after their UEFA Cup third round soccer match against Panathinaikos at Apostolos Nikolaides stadium in Athens February 21, 2008. REUTERS/Yiorgos Karahalis (GREECE) 

Glasgow Rangers' Charles Adam (R) controls the ball against Panathinaikos' Mikael Nilsson (C) as team mate Barry Ferguson closes in during their UEFA Cup third round soccer match at Apostolos Nikolaides stadium in Athens February 21, 2008. REUTERS/Yiorgos Karahalis (GREECE) 

Rangers' Barry Ferguson (2nd R) celebrates with team mates after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (2nd R) celebrates with team mates after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (C) watches his shot go in for a goal against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers Barry Ferguson (R) celebrates with team mate Chris Burke after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers Barry Ferguson (L) celebrates with his team mates after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers Barry Ferguson (R) celebrates with team mate Chris Burke after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers Barry Ferguson celebrates with his team mates after scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Rangers Barry Ferguson celebrates scoring against Hearts during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland January 30, 2008. REUTERS/David Moir (BRITAIN) 

Hearts' Andreus Velicka (L) challenges Rangers' Barry Ferguson (C) during their CIS Insurance Cup semi-final soccer match at Hampden Park stadium in Glasgow, Scotland, January 30, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Inverness Caledonian Thistle's Ian Black challenges Rangers' Barry Ferguson during their Scottish Premier League soccer match at the Tulloch Caledonian stadium, Inverness, Scotland, January 20, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Inverness Caledonian Thistle's Ian Black challenges Glasgow Rangers' Barry Ferguson during their Scottish Premier League soccer match at the Tulloch Caledonian stadium, Inverness, Scotland, January 20, 2008. REUTERS/Russell Cheyne (BRITAIN) 

Snooker player John Higgins (L) and Glasgow Rangers captain Barry Ferguson stand together after the funeral service of former Motherwell soccer team captain Phil O'Donnell, at St Mary's Church in Hamilton, Lanarkshire, central Scotland January 4, 2008. O'Donnell collapsed on the pitch during Motherwell's Scottish Premier League match against Dundee United and later died. REUTERS/David Moir (BRITAIN) 

Rangers' Steven Naismith (R) celebrates with his team mate Barry Ferguson after scoring against Hibernian during their Scottish Premier League soccer match in Edinburgh, Scotland December 29, 2007. REUTERS/David Moir (BRITAIN) 

Rangers' Lee McCulloch (R) is sent off as his captain Barry Ferguson (C) argues with the referee during their Scottish Premier League soccer match against Aberdeen at Pittodrie Stadium in Aberdeen, Scotland, December 23, 2007. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Lee McCulloch (R) is sent off as his captain Barry Ferguson (C) argues with the referee during their Scottish Premier League soccer match against Aberdeen at Pittodrie Stadium in Aberdeen, Scotland, December 23, 2007. REUTERS/Russell Cheyne (BRITAIN) 

Lyon's Jeremy Toulalan (R) challenges Rangers' Barry Ferguson (L) during their Champions League Group E soccer match at Ibrox Stadium in Glasgow, Scotland, December 12, 2007. REUTERS/Russell Cheyne (BRITAIN) 

Rangers' Barry Ferguson (L) shouts next to team mate Charlie Adam during a soccer training session at their Murray Park training facility in Milngavie near Glasgow, Scotland ahead of their Champions League Group E match against Lyon December 12, 2007. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson (C) shouts next to team mates during a soccer training session at their Murray Park training facility in Milngavie near Glasgow, Scotland ahead of their Champions League Group E match against Lyon December 12, 2007. REUTERS/David Moir (BRITAIN) 

Rangers' Barry Ferguson watches a ball during a soccer training session at their Murray Park training facility in Milngavie near Glasgow, Scotland ahead of their Champions League Group E match against Lyon December 12, 2007. REUTERS/David Moir (BRITAIN) 

Rangers' (L-R) Barry Ferguson, Kris Boyd and Jean-Claude Darcheville walk together during a soccer training session at their Murray Park training facility in Milngavie near Glasgow, Scotland ahead of their Champions League Group E match against Lyon December 12, 2007. REUTERS/David Moir (BRITAIN) 

Barry Ferguson team captain of Glasgow Rangers celebrates his equalizing goal against VfB Stuttgart during their Champions League Group E soccer match in Stuttgart, November 27,2007. REUTERS/Kai Pfaffenbach (GERMANY) 

Barry Ferguson (R) team captain of Glasgow Rangers celebrates his equalizing goal against VfB Stuttgart with his team mate Charles Adam during their Champions League Group E soccer match in Stuttgart, November 27,2007. REUTERS/Kai Pfaffenbach (GERMANY) 

Barry Ferguson (R), team captain of Glasgow Rangers, celebrates his equalizing goal against VfB Stuttgart with team mate Charles Adam during their Champions League Group E soccer match in Stuttgart, November 27, 2007. REUTERS/Kai Pfaffenbach (GERMANY) 

Glasgow Rangers' Barry Ferguson (R) scores a goal during their Champions League Group E soccer match against VfB Stuttgart in Stuttgart November 27, 2007. REUTERS/Thomas Bohlen (GERMANY) 

Italy's Massimo Ambrosini (top) fights for the ball with Barry Ferguson of Scotland during their Euro 2008 Group B qualifying soccer match at Hampden Park in Glasgow November 17, 2007. REUTERS/Alessandro Bianchi (SCOTLAND) 

Scotland's Barry Ferguson gestures while taking part in a news conference at Cameron House near Glasgow, Scotland November 16, 2007. Scotland play Italy in a Euro 2008 qualifying match on Saturday at Hampden Park stadium in Glasgow. REUTERS/David Moir (BRITAIN) 

Scotland's Barry Ferguson scratches his back while taking part in a news conference at Cameron House near Glasgow, Scotland November 16, 2007. Scotland play Italy in a Euro 2008 qualifying match on Saturday at Hampden Park stadium in Glasgow. REUTERS/David Moir (BRITAIN)