meanwhile, rafa nadal says he's not sure if he will be able to play at next month's french open after pushing through the pain barrier in his comeback from injury. the 37—year—old, who is a 22—time grand slam champion, said that he is farfrom being in top form and that he's only playing in the first round of the madrid open on thursday as a personal sacrifice. nadal, who has said he expects to retire after this season, returned to competition in brisbane injanuary, after almost a year sidelined with a hip flexor injury, but hasn't played consistently since. china's ding junhui is out of the world snooker championship in sheffield after losing the deciding frame in a dramatic first round match against the world number 17 jack lisowski. a clearance break of 131 from ding, who was runner up here eight years ago but has never won the world title, levelled the match at 9—all. but it was the englishman, lisowski, who came out on top in that final frame — to set up a meeting with stuart bingham in the second round. world number one ronnie o'sullivan has got his bid for a record—b