Spain's former tennis World No 1 Rafael Nadal, who has struggled with a sore left shoulder since the end of last season, yesterday said that he is not sure he will be playing at his peak at the Australian Open later this month.

Rafael Nadal

"I see myself capable of having a good tournament but you never know. I am happy with the level of my game, of how I am doing things and I think I am sowing seeds that will bear fruit. But maybe not in Australia," he said in an interview published yesterday in Catalan sports daily Sport.