Rafael Nadal continues to add French Open titles, but winning on the grass courts of Wimbledon proves elusive because of one person: Roger Federer. The Swiss Champion holds as much dominance on grass as Nadal has on clay. So when the 2007 Wimbledon Final goes to Federer in a closely-won match over Nadal, the Spaniard believes he’s lost his best opportunity to beat his nemesis.