5 non-tennis facts you didn't know about Roger Federer

Federer, pictured in Brazil eating ham sandwiches, was a vegetarian by choice until his teens

3.He’s close friends with Tiger Woods

MIAMI - MARCH 21:  Tiger Woods of the USA walsk off the 12th tee with world tennis no 1 Roger Federer of Switzerland who walked with Tiger for the final 9 holes of Tiger Wood's final practice for the CA World Golf Championships held at the Doral Golf Resort and Spa, on March 21, 2007, in Miami, Florida, United States.  (Photo by David Cannon/Getty Images)
Top of their game: Federer and Tiger Woods have also worked together in ad campaigns

Both have been the best in their respective sports, and there is an unprecedented level of dedication and hard work that goes into it.

That shared experience is likely a key factor in the close friendship of Roger Federer with Tiger Woods.

Federer, who with wife Mirka has been one of sport’s ideal couples, has never commented on the golfer’s scandalous personal life, which likely contributed significantly to his downfall in the sport.

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