Roger Federer says 'a lot possible' for returning Kim Clijsters

Swiss great Roger Federer believes four-time Grand Slam champion Kim Clijsters can achieve "a lot" on her comeback after seven years out of game, insisting doesn't matter. 36-year-old Belgian, who retired after 2012 US Open, is set for a return in March, having originally scheduled her comeback at next week's Australian Open until a knee injury scuppered plan. Federer said he h t seen Clijsters swing a racquet in years but "kwing what she could do before, seeing her and her personality, if she is coming back, it's because she's really in mood to".

"She wants to see what else is left to do," he ded. "I think doesn't matter, to be honest. I think it's fitness and mind that matters.

"So I think a lot is possible, even though re should be expectations from her side and from anybody else." Clijsters, affectionally kwn as 'Aussie Kim' in Australia due to her former relationship with Lleyton Hewitt, has won 41 titles, including three US Opens (2005, 2009 and 2010) and one Australian Open (2011).

She turned professional in 1997 and reached world number one ranking for first time in 2003, and most recently in February 2011. "I think she's going to be fresh," Federer said."Does she have to play 30 tournaments a year? , t really. She plays when she's in mood to, when it suits her family. I think it's going to be very exciting to follow."