Mark Grimmette and Brian Martin of the U.S. speed down the track during their final run of the men's doubles luge event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 17, 2010. REUTERS/Kai Pfaffenbach (CANADA)

Mark Grimmette of the U.S. and Brian Martin (behind) finish their final run of the men's doubles luge event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia February 17, 2010. REUTERS/Tony Gentile (CANADA) 

Brian Martin (L) and Mark Grimmette of the U.S. speed down the track during a training run for the men's doubles luge event at the Vancouver 2010 Winter Olympics in Whistler, British Columbia, February 15, 2010. REUTERS/Jim Young (CANADA)

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/David Gray (CANADA - Tags: SPORT OLYMPICS) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/David Gray (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/David Gray (CANADA - Tags: SPORT OLYMPICS) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/David Gray (CANADA - Tags: SPORT OLYMPICS) 

Flag bearer Mark Grimmette of the U.S. leads his country's delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mike Blake (CANADA)

Flag bearer Mark Grimmette of the U.S. leads his country's delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Gary Hershorn (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mike Blake (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Jerry Lampen (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Jerry Lampen (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mark Blinch (CANADA) 

Luger Mark Grimmette of the United States leads his delegationduring the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lyle Stafford (CANADA) 

Luger Mark Grimmette of the United States leads his delegationduring the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lyle Stafford (CANADA) 

Luger Mark Grimmette of the United States leads his delegationduring the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lyle Stafford (CANADA) 

Luger Mark Grimmette (R) of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mike Blake (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mike Blake (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Mike Blake (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Gary Hershorn (CANADA) 

Luger Mark Grimmette of the United States leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Gary Hershorn (CANADA) 

Mark Grimmette of the U.S. leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Dylan Martinez (CANADA)

Mark Grimmette of the U.S. leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Dylan Martinez (CANADA)

Mark Grimmette of the U.S. leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lucy Nicholson (CANADA)

Mark Grimmette of the U.S. leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lucy Nicholson (CANADA)

Mark Grimmette of the U.S. leads his delegation during the opening ceremony of the Vancouver 2010 Winter Olympics, February 12, 2010. REUTERS/Lucy Nicholson (CANADA)

Mark Grimmette (top) and Martin Brian of the U.S. compete in the men's double luge World Cup event in the eastern German town of Oberhof January 16, 2010. REUTERS/Fabrizio Bensch (GERMANY - Tags: SPORT LUGE) 

Mark Grimmette (top) and Martin Brian of the U.S. compete in the men's double luge World Cup event in the eastern German town of Oberhof January 16, 2010. REUTERS/Fabrizio Bensch (GERMANY - Tags: SPORT LUGE) 

Mark Grimmette (top) and Brian Martin of USA race during the first round in the men's doubles luge World Cup competition in Calgary, Alberta, November 20, 2009. REUTERS/Todd Korol (CANADA SPORT LUGE) 

Luger Mark Grimmette poses for a portrait during the 2010 U.S. Olympic Team Media Summit in Chicago, September 10, 2009. REUTERS/John Gress (UNITED STATES SPORT OLYMPICS HEADSHOT) 

Lugers Brian Martin (L) and Mark Grimmette pose for a portrait during the 2010 U.S. Olympic Team Media Summit in Chicago, September 10, 2009. REUTERS/John Gress (UNITED STATES SPORT OLYMPICS) 

Mark Grimmette (L) and Brian Martin of the U.S. speed down the course during the first round in the men's doubles luge World Cup competition in Calgary, Alberta, February 14, 2009. REUTERS/Todd Korol (CANADA) 

Gerhard Plankensteiner (3rd L) and Oswald Haselrieder (3rd R) of Italy celebrate their win in the doubles race on the podium at the FIL Luge World Championships in Lake Placid, New York, February 6, 2009. Torsten Wustlich (L) and Andre Florschutz (2nd L) of Germany celebrate their second place finish and Mark Grimmette (2nd R) and Brian Martin (R) of the U.S. celebrate third place. REUTERS/Christinne Muschi (UNITED STATES) 

Mark Grimmette (R) and Brian Martin of the U.S. celebrate their third place finish in the doubles race at the FIL Luge World Championships in Lake Placid, New York, February 6, 2009. REUTERS/Christinne Muschi (UNITED STATES) 

Mark Grimmette (front) and Brian Martin of the U.S. celebrate their third place finish in the doubles race at the FIL Luge World Championships in Lake Placid, New York, February 6, 2009. REUTERS/Christinne Muschi (UNITED STATES) 

Mark Grimmette (top) and Brian Martin of the U.S. speed down the track during the first run of the doubles race at the FIL Luge World Championships in Lake Placid, New York, February 6, 2009. REUTERS/Christinne Muschi (UNITED STATES) 

Mark Grimmette (top) and Martin Brian of U.S. speed down the track during the team relay luge World Cup competition at the German resort of Altenberg January 23, 2009. REUTERS/Fabrizio Bensch (GERMANY) 

Mark Grimmette and Brian Martin of the U.S. compete during the men's double luge World Cup event in Sigulda, about 50 km (31 miles) from the capital Riga December 6, 2008. REUTERS/Ints Kalnins (LATVIA) 

Mark Grimmette and Martin Brian of the U.S. speed down the course to win the double men's competition at the FIL Luge World Championships in the town of Igls in Innsbruck, February 4, 2007. REUTERS/Petr Josek (AUSTRIA) 

Mark Grimmette and Brian Martin of the U.S. speed down the track during the second official training run for the FIL Luge World Championships in the town of Igls in Innsbruck, February, 2007. The World Championships will start on February 2. REUTERS/ Dominic Ebenbichler (AUSTRIA) 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the men's double luge World Cup event in the eastern German town of Oberhof January 14, 2007. REUTERS/Fabrizio Bensch (GERMANY) 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. 

Mark Grimmette (top) and Brian Martin of the U.S. start the first run of the men's doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. The pair crashed during the run. REUTERS/Fabrizio Bensch 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Jean-Paul Pelissier 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Jean-Paul Pelissier 

Mark Grimmette (left) and Brian Martin of the U.S. react after crashing during the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Pawel Kopczynski 

Mark Grimmette (left) and Brian Martin of the U.S. react after crashing during the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy, February 15, 2006. REUTERS/Pawel Kopczynski 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Jean-Paul Pelissier 

Mark Grimmette (top) and Brian Martin of the U.S. compete in the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Jean-Paul Pelissier 

Mark Grimmette (left) and Brian Martin of the U.S. react after crashing during the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. REUTERS/Pawel Kopczynski 

Mark Grimmette (left) and Brian Martin of the U.S. react after crashing during the doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy, February 15, 2006. REUTERS/Pawel Kopczynski 

Mark Grimmette (top) and Brian Martin of the U.S. start the first run of the men's doubles luge event at the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 15, 2006. The pair crashed during the run. REUTERS/Fabrizio Bensch 

Mark Grimmette (L) and Brian Martin of the U.S. speed down the track during an official double men luge training run for the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 12, 2006. REUTERS/Fabrizio Bensch 

Mark Grimmette (L) and Brian Martin of the U.S. speed down the track during an official double men luge training run for the Torino 2006 Winter Olympic Games in Cesana Pariol, Italy February 12, 2006. REUTERS/Fabrizio Bensch 

Italy's Christian Oberstolz (front) and Patrick Gruber stop their sledge after crossing the finish line during the men's doubles Suzuki Challenge Cup luge competition in the eastern German town of Oberhof January 27, 2006. Oberstolz and Gruber won the competition ahead of Germany's Andre Florschuetz and Torsten Wustlich and Mark Grimmette and Brian Martin of U.S. REUTERS/Arnd Wiegmann 

Italy's Christian Oberstolz (front) and Patrick Gruber race down the track during the men's doubles Suzuki Challenge Cup luge competition in the eastern German town of Oberhof January 27, 2006. Oberstolz and Gruber won the competition ahead of Germany's Andre Florschuetz and Torsten Wustlich and Mark Grimmette and Brian Martin of U.S. REUTERS/Arnd Wiegmann 

Mark Gimmette (L) and Brian Martin of the U.S. celebrate winning the World Cup Luge Doubles in Calgary, Canada, December 9, 2005. REUTERS/Patrick Price 

(L to R) Brian Martin, Mark Grimmette, Tony Benshoof and Ashley Hayden of Unites States celebrate on the podium after finishing in second place at the team competition in the Luge World Championships, in Salt Lake City February 20, 2005. Germany won the competition ahead of the U.S. in second and Italy in third. REUTERS/Carlos Barria CB 

Grimmette and Martin of United States race down the track during the double luge competition at the Luge World Championships in Salt Lake City. Mark Grimmette and Brian Martin of United States race down the track during the double luge competition at the Luge World Championships in Salt Lake City on February 18, 2005. Grimmete and Martin finished in second place. REUTERS/Carlos Barria 

Americans Grimmette and Martin race down the track during the double luge competition at the Luge World Championships in Salt Lake City. Mark Grimmette and Brian Martin of the United States race down the track during the double luge competition at the Luge World Championships in Salt Lake City, February 18, 2005. Grimmete and Martin finished in second place. REUTERS/Carlos Barria