Federer: Kyrgios is a contender

Federer begins Halle Open campaign with straight sets win over Millman

Swiss superstar Roger Federer feels that if Nick Kyrgios keeps his cool and lives up to his potential on grass courts, he is quite capable of winning Wimbledon.

In an interview with AAP, Federer said that if the 22-year-old big-serving Australian's fitness and emotions were 'on song', he was quite capable of a breakout tournament like Wimbledon.  

"Just play focused, play inspired and believe in himself," said the 18-time grand slam winner.

"Yeah, he's one of the top contenders to surprise anybody. He's got a great game on grass. He's going to be really tough to beat."

On Thursday when asked about his chances at Wimbledon and upbeat Kyrgios said, "The sky's the limit at Wimbledon." 

Kyrgios seems to have recovered from his hip injury as he showed no indication of it when defeating German Philipp Kohlschreiber in straight sets at The Boodles exhibition event in Buckinghamshire.

"It's perfect preparation for me to come here and just sort of have a laid-back vibe but obviously play some pretty good tennis as well, so I'm feeling good," Kyrgios said.

"I took some time off after Queen's and just rehabbed and looked after it. I've had this hip injury pretty much for the last six, seven months so it's been giving me grief.

"But hopefully it's settled down a bit and I'm looking forward to playing Wimbledon."