Maybe it is a rivalry

OK so Rafael Nadal didn't defeat Roger Federer in Sunday's Wimbledon men's final.

What he did, however, was give Federer his biggest challenge since he began his run of dominance at the All-England Club.

Nadal served notice that he may be worthy of being Federer's chief rival regardless of the surface. Mixing different styles of play for the first time allowed him to take Federer to five sets despite Nadal's injured knee.

So while a loss is still a loss, Nadal came out ahead this Sunday as opposed to Wimbledons past.