BEIJING - AUGUST 23: Tariku Bekele (2nd R) of Ethiopia and Abreham Cherkos of Ethiopia lead the field during the Men's 5000m Final held at the National Stadium on Day 15 of the Beijing 2008 Olympic Games on August 23, 2008 in Beijing, China.

BEIJING - AUGUST 23: Gold medal winner Kenenisa Bekele (C) of Ethiopia celebrates with countrymen Tariku Bekele and Abreham Cherkos after the Men's 5000m Final held at the National Stadium on Day 15 of the Beijing 2008 Olympic Games on August 23, 2008 in Beijing, China.

Mohamed Farah of Great Britain celebrates as he crosses the finish line to win gold ahead of Dejen Gebremeskel of Ethiopia and Thomas Pkemei Longosiwa of Kenya in the Men's 5000m Final on Day 15 of the London 2012 Olympic Games at Olympic Stadium on August 11, 2012 in London, England.

London 2012 - Distance runners fill the track during the men’s 5000m final on August 11, 2012.

London 2012 - Olympic Stadium spectators cheer the men’s 5000m participants on August 11, 2012.

London 2012 - Great Britain’s Mohamed Farah waves from atop the podium for the men’s 5000m run alongside silver medalist Dejen Gebremeskel of Ethiopia and Thomas Pkemei Longosiwa of Kenya in bronze on August 11, 2012.

London 2012 - Mohamed Farah of Great Britain runs mid pack in early action of the men’s 5000m final but picks up the pace to win the gold medal on August 11, 2012.

23 Feb 2002: Clara Hughes of Canada in action on her way to winning the bronze medal in the women's 5000m speed skating event during the Salt Lake City Winter Olympic Games at the Utah Olympic Oval in Salt Lake City, Utah. DIGITAL IMAGE. Mandatory Credit: Matthew Stockman/Getty Images

23 Feb 2002: Claudia Pechstein of Germany in action on her way to winning the gold medal and a new world record time of 6:46.91 in the women's 5000m speed skating event during the Salt Lake City Winter Olympic Games at the Utah Olympic Oval in Salt Lake City, Utah. DIGITAL IMAGE. Mandatory Credit: Matthew Stockman/Getty Images

23 Feb 2002: L-R: Silver medalist Gretha Smit of the Netherlands, gold medalist Claudia Pechstein of Germany and bronze medalist Clara Hughes of Canada during the flower ceremony in the women's 5000m speed skating event during the Salt Lake City Winter Olympic Games at the Utah Olympic Oval in Salt Lake City, Utah. DIGITAL IMAGE. Mandatory Credit: Matthew Stockman/Getty Images