Nadal and Federer ease through as Kvitova tumbles out

Rafael Nadal and Roger Federer enjoyed straightforward victories at the ATP & WTA BNP Paribas Open on Sunday but Wimbledon champion Petra Kvitova suffered a surprise early exit in Indian Wells.

Nadal, making his first appearance since losing to world number one Novak Djokovic in an epic Australian Open final in January, showed no signs of rust in winning his second-round clash 6-1 6-3 against Leonardo Mayer in 75 minutes.