Roger Federer has a chance to break the men's career Grand Slam mark, which he currently shares with Pete Sampras, with a win at Wimbledon this summer. And with that in mind, we've asked SportsNation to rank the best individual-sport athletes in the world.

Below, we've listed who we think are the five best candidates and now it's up to you to choose the best of the best. Will Woods finish ahead of Federer? How will the two biggest stars at last year's Olympics Games, Michael Phelps and Usain Bolt, fare?

Submit your Power Rankings now!