Roger Federer and his biggest fan Lindsay Vonn took to the Swiss Alps for a little hit-and-giggle on behalf of Federer's chocolate sponsor, Lindt.

The groundwork for the publicity stunt was laid down last when Lindt posted a video of Federer and Vonn on a Skype date. Vonn offered her condolensces about the Wimbledon final, while Federer acted as dorky as ever. Then the two agreed -- after an impromptu game of Pictionary -- to meet up on the mountain to play some tennis.

Source: si.com