McEnroe regrets' ranking' Serena

Legend laments speculating on Williams' success against men

NEW YORK - John McEnroe said on Wednesday he would have been better off never trying to compare Serena Williams to men's players after the furor over his remark that she would rank "like 700 in the world".

Three days after his comments to National Public Radio were aired, the retired tennis great-turned-commentator tried to draw a line under the matter on an ESPN conference call ahead of Wimbledon.