Wimbledon: Former champion Petra Kvitova falls at first hurdle

Rafael Nadal comes through first-round clash without trouble

Novak Djokovic in imperious form at Australian Open

Serbian too good for Italian Fabio Fognini, Tomas Berdych to meet David Ferrer in quarters

Roger Federer to face tougher tests

Federer on cruise control in Melbourne but sterner challengers now await the Swiss

Top seeds keep up the heat as Melbourne begins to cool

Djokovic and Serena Williams both through in straight sets

Wozniacki makes an early exit in Sydney

Agnieszka Radwanska also among the big names to lose at Sydney International

Roger Federer beaten by Gael Monfils in China

Swiss player’s hopes of qualifying for World Tour Finals dealy blow by Shanghai Masters loss

Murray cruises into the next round

In-control Djokovic restores some order at the top table

Anger elsewhere as Bernard Tomic’s father is banned from watching because of a pending court case

Djokovic eases into stride at Wimbledon

Top seed defeats Germany’s Florian Mayer on Centre Court in first round

Federer’s final ambition runs through Nadal and Murray

Number one seed Novak Djokovic avoids big three rivals in draw