Canadian Swan Song Athletes

Several athletes on the Canadian team at the London 2012 olympics have represented their country in more than one games. For many of them this may be their last shot in the Olympic arena.

Canadian Simon Whitfield celebrates winning the men's triathlon event at the Sydney Olympics Games September 17, 2000. REUTERS/Mark Baker

Simon Whitfield (L) of Canada runs during the men's triathlon competition at the Ming Tomb reservoir in the Changping District of northern Beijing during the Beijing 2008 Olympic Games REUTERS/Desmond Boylan

Silver medalist Simon Whitfield of Canada poses after the Mens Triathlon Final at the Triathlon Venue on Day 11 of the Beijing 2008 Olympic Games on August 19, 2008 in Beijing, China. (Photo by Adam Pretty/Getty Images)

Canadian Simon Whitfield celebrates as he crosses the finish line to win the triathlon event at the Sydney Olympics Games September 17, 2000. REUTERS/Russell Boyce

Silver medallist Simon Whitfield of Canada celebrates after the men's triathlon competition at the Ming Tomb reservoir in the Changping District of northern Beijing during the Beijing 2008 Olympic Games August 19, 2008.REUTERS/Hannibal Hanschke

Triathlete Simon Whitfield waves the Canadian flag after being named Canada's flag bearer for the opening ceremony at the London 2012 Olympic Games, on Parliament Hill. REUTERS/Chris Wattie

Canada's Emilie Heymans dives in the final of the women's three meter springboard final at the Athens 2004 Olympic Games, August 26, 2004. REUTERS/Shaun Best

Canada's Emilie Heymans dives during the semi finals of the women's 10 meter platform diving competition at the 2004 Olympic Games in Athens August 21, 2004. REUTERS/Damir Sagolj

Women's synchro diving team Anne Montminy, left, and Emilie Heymans pose with their silver medals at the 2000 Olympics in Sydney. Fred Thornhill/ Sunmedia

Canada's Emilie Heymans and Anne Montminy dive in the synchronized 10m platform final at the Sydney 2000 Olympics, September 28, 2000. The pair finished the competition in second place and won the silver medal. REUTERS/Jose Miguel Gomez

Emilie Heymans of Canada competes in the women's 10m platform diving final at the Beijing 2008 Olympic Games August 21, 2008. REUTERS/Jason Reed

Emilie Heymans poses with her silver medal at the Beijing Olympics in 2008.

Alexandre Despatie of Canada shows his silver medal in the men's 3m springboard diving final at the Beijing 2008 Olympic Games August 19, 2008. REUTERS/Jason Reed

Alexandre Despatie of Canada competes in the men's 3m springboard diving final at the Beijing 2008 Olympic Games August 19, 2008. REUTERS/Jason Reed

Canada's Alexandre Despatie dives during semifinal of the men's 3 meter springboard at the 2004 Olympic Games in Athens August 24, 2004. REUTERS/Damir Sagolj

Canadian diver Alexandre Despatie, 15, of Laval, Quebec performs in the men's 10m platform preliminary at the Olympic Games in Sydney on September 29, 2000. REUTERS/Mariana Bazo

Alexandre Despatie of Canada competes in the men's 3m springboard diving final at the Beijing 2008 Olympic Games August 19, 2008. REUTERS/Jason Reed

Alexandre Despatie of Canada dives to win the silver medal in the three metre springboard at the Athens 2004 Olympic Games August 24, 2004. REUTERS/Damir Sagolj

Alexandre Despatie shows the scar from an an accident that occured during training for the 2012 London Olympics. TZARA MAUD/ JOURNAL DE MONTR�AL/ AGENCE QMI

Canada's Olympic team follow their national flag-bearer Adam van Koeverden during the opening ceremony of the Beijing 2008 Olympic Games at the National Stadium August 8, 2008. REUTERS/Shaun Best

Canada's Adam Van Koeverden celebrates his gold medal win in the men's K1 500 meter kayak race at the Athens 2004 Olympic Games in this August 28, 2004 REUTERS/Shaun Best/Files

Canada's Adam van Koeverden (R) competes to a silver medal finish in the men's K1 500m kayak final at the Beijing 2008 Olympic Games, August 23, 2008. REUTERS/Shaun Best

Canada's Adam van Koeverden competes in his K1 1000 meter heat at the Beijing 2008 Olympic Games, August 18, 2008. REUTERS/Shaun Best

Canada's Adam van Koeverden shows off gold and bronze medals at the Athens 2004 Olympic Games, August 28, 2004.REUTERS/Shaun Best

Canada's Adam van Koeverden reacts to his eighth place finish in the men's K1 1000m kayak final at the Beijing 2008 Olympic Games, August 22, 2008. REUTERS/Shaun Best

Canada's Adam van Koeverden laughs on the podium with his silver medal after competing in the men's K1 500m kayak final at the Beijing 2008 Olympic Games August 23, 2008. REUTERS/Shaun Best

Clara Hughes celebrates her golf medal in cycling at the Atlanta 1996 games.

Clara Hughes, right, competes at at the Atlanta 1996 games.

Clara Hughes competes in the 5000 metre race during the Vancouver 2010 olympics. Photo by MARTIN CHEVALIER / QMI AGENCY

Clara Hughes (L) of Canada is congratulated by team member after winning gold medal in the women's speed skating 5000 metres race at the Torino 2006 Winter Olympic Games REUTERS/Grigory Dukor

Canadian speed skater Clara Hughes celebrates her win in the women's 5000 metres at the Torino 2006 Winter Olympic GamesREUTERS/Shaun Best

Gold medal winner Canada's Clara Hughes, right, and her compatriot bronze medal winner Cindy Klassen pose with their medals after a medal ceremony of the 2006 Winter Olympics women's 5,000 meter speedskating competition at the Oval Lingotto in Turin(AP Photo/Koji Sasahara)

Clara Hughes during the Olympic ladies' speed skating 5000m during the Vancouver 2010 Olympics. Photo by MARTIN CHEVALIER / QMI AGENCY

Speedskater Clara Hughes holds a Canadian flag outside the Olympic Oval in Richmond, British Columbia January 29, 2010. Hughes was chosen as the flag bearer during the opening ceremonies for the 2010 Olympic Winter Games REUTERS/Andy Clark

Olympic champion Clara Hughes holds all the olympic medals she has won in her career following a press conference Tuesday, April 13, 2010. (MARCEL CRETAIN/Winnipeg Sun - QMI Agency)

Ian Millar of Canada celebrates after competing in the equestrian jumping team competition at the Beijing 2008 Olympic Games. REUTERS/Bobby Yip

Ian Millar of Canada celebrates after competing in the equestrian jumping team competition at the Beijing 2008 Olympic Games in Hong Kong August 18, 2008. REUTERS/Bobby Yip

Mac Cone, Ian Millar, Eric Lamaze and Jill Henselwood, l-r, with their silver medals in team jumping at the 2008 Beijing Olympics team

Canada's Ian Millar reacts as he leaves the ring after a clear round in the team equestrian show jumping competition of the Beijing 2008 Olympic Games in Hong Kong August 18, 2008. REUTERS/Caren Firouz

Daniel Nestor and Sebastien Lareau recieve their gold medals at the Sydney 2000 Olympics. FRED TORNHILL/ Sun

Daniel Nestor, l, of Canada returns the ball as teammate Frederic Niemeyer looks on during their men's doubles first round tennis match against Andy and Jamie Murray of Britain at the Beijing 2008 Olympic Games August 11, 2008. REUTERS/Toby Melville

Canadians Daniel Nestor, left, and Sebastien Lareau celebrate on match point in their Olympic final against the Australian team of Woodforde/Woodbridge September 27, 2000. The Canadian duo captured the gold winning 5-7 6-3 6-4 7-6. REUTERS/Alexander Demianchu

Canadians Daniel Nestor, left, and Sebastien Lareau wave from the podium after their Olympic final against the Australian team of Woodforde/Woodbridge September 27, 2000. The Canadian duo captured the gold winning 5-7 6-3 6-4 7-6. REUTERS/Kevin Lamarque

Several athletes on the Canadian team at the London 2012 olympics have represented their country in more than one games. For many of them this may be their last shot in the Olympic arena.

Canada's Adam van Koeverden reacts to his eighth place finish in the men's K1 1000m kayak final at the Beijing 2008 Olympic Games, August 22, 2008. REUTERS/Shaun Best

Canada's Adam van Koeverden laughs on the podium with his silver medal after competing in the men's K1 500m kayak final at the Beijing 2008 Olympic Games August 23, 2008. REUTERS/Shaun Best

Clara Hughes celebrates her golf medal in cycling at the Atlanta 1996 games.

Clara Hughes, right, competes at at the Atlanta 1996 games.

Clara Hughes competes in the 5000 metre race during the Vancouver 2010 olympics. Photo by MARTIN CHEVALIER / QMI AGENCY

Clara Hughes (L) of Canada is congratulated by team member after winning gold medal in the women's speed skating 5000 metres race at the Torino 2006 Winter Olympic Games REUTERS/Grigory Dukor

Canadian speed skater Clara Hughes celebrates her win in the women's 5000 metres at the Torino 2006 Winter Olympic GamesREUTERS/Shaun Best

Gold medal winner Canada's Clara Hughes, right, and her compatriot bronze medal winner Cindy Klassen pose with their medals after a medal ceremony of the 2006 Winter Olympics women's 5,000 meter speedskating competition at the Oval Lingotto in Turin(AP Photo/Koji Sasahara)

Clara Hughes during the Olympic ladies' speed skating 5000m during the Vancouver 2010 Olympics. Photo by MARTIN CHEVALIER / QMI AGENCY

Speedskater Clara Hughes holds a Canadian flag outside the Olympic Oval in Richmond, British Columbia January 29, 2010. Hughes was chosen as the flag bearer during the opening ceremonies for the 2010 Olympic Winter Games REUTERS/Andy Clark

Olympic champion Clara Hughes holds all the olympic medals she has won in her career following a press conference Tuesday, April 13, 2010. (MARCEL CRETAIN/Winnipeg Sun - QMI Agency)

Ian Millar of Canada celebrates after competing in the equestrian jumping team competition at the Beijing 2008 Olympic Games. REUTERS/Bobby Yip

Ian Millar of Canada celebrates after competing in the equestrian jumping team competition at the Beijing 2008 Olympic Games in Hong Kong August 18, 2008. REUTERS/Bobby Yip

Mac Cone, Ian Millar, Eric Lamaze and Jill Henselwood, l-r, with their silver medals in team jumping at the 2008 Beijing Olympics team

Canada's Ian Millar reacts as he leaves the ring after a clear round in the team equestrian show jumping competition of the Beijing 2008 Olympic Games in Hong Kong August 18, 2008. REUTERS/Caren Firouz

Daniel Nestor and Sebastien Lareau recieve their gold medals at the Sydney 2000 Olympics. FRED TORNHILL/ Sun

Daniel Nestor, l, of Canada returns the ball as teammate Frederic Niemeyer looks on during their men's doubles first round tennis match against Andy and Jamie Murray of Britain at the Beijing 2008 Olympic Games August 11, 2008. REUTERS/Toby Melville

Canadians Daniel Nestor, left, and Sebastien Lareau celebrate on match point in their Olympic final against the Australian team of Woodforde/Woodbridge September 27, 2000. The Canadian duo captured the gold winning 5-7 6-3 6-4 7-6. REUTERS/Alexander Demianchu

Canadians Daniel Nestor, left, and Sebastien Lareau wave from the podium after their Olympic final against the Australian team of Woodforde/Woodbridge September 27, 2000. The Canadian duo captured the gold winning 5-7 6-3 6-4 7-6. REUTERS/Kevin Lamarque