Originally Posted by nadal_slam_king
Federer would be relying on Rafa to lose before the QFs in slams in order to really help Federer. Plus Rafa can gain points at Australian Open, Queens, Toronto, Cincy. And Rafa's lead is massive, so he can afford some slip-ups.
This. Moreover, if Nadal can have a strong finish in the remaining tournaments this season then as far as rankings are concerned, the ball will (excuse the pun) be in Nadal's court. Roger would have to rely on Rafa slipping up early in a few of the big tournaments as it's unrealistic to assume that he will be able to accumulate enough points just by winning his own matches.
Yes, Rafa does have a lot to defend, but he could realistically gain points in the early hard court season. In addition, it's difficult to see him not winning the French Open. What about the grass court tournaments? Well, he will probably be the favourite for Wimbledon too.