What Sets Roger Federer Apart from Michael Jordan, Serena Williams, and Gerrit Cole

SI's Jon Wertheim shares the significance of a photo that recently resurfaced

A picture resurfaced recently of a young Roger Federer posing with an even younger Rafa Nadal. SI's Jon Wertheim shares the significance of the image and reasons why Federer posing with someone who would one day become a rival on the court sets Federer apart from other athletes at the top of their game.