Serena Williams was impressed by Annika Sorenstam's foray onto the PGA Tour. The No 1 women's tennis player has no desire to play against men, though.

　　"I think she did great," Williams said. "I really wanted her to do even better. But I think she did really, really well." Williams added that Sorenstam proved "she can hang up there. It's cool she was able to do that." Williams has been as dominant on the WTA Tour as Sorenstam is on the LPGA Tour, but is not keen on following in her footsteps. "I'm here to play female tennis," she said. "I've never been involved in men's tennis." Asked how she thought she would do if tempted to play against men, Williams smiled and delivered a quick response: "I wouldn't be tempted."