Rob Cole looks back at rugby players like Ken Jones and Jack Gregory who enjoyed success at the Olympic Games...

It's a question that is often debated: who is the fastest man to play international rugby union?
Some say Jonah Lomu, others back Louis Rees-Zammit or his former Gloucester colleague Jonny May. The French had Patrice Lagisquet and Sebastien Carrat speeding down their wings, while the American Eagles boasted Takudzwa Ngwenya.
Doug Howlett and Joe Rokocoko were like quicksilver for the All Blacks and Springboks World Cup winner Bryan Habana was alleged to have outrun a cheetah in a...