World number two Kim Clijsters is unsure whether she will be fit enough to play the French Open next month.

Clijsters had to withdraw from the Pacific Life Open in California last month with a wrist injury and initially thought she would be out for up to six weeks.

"This injury is profoundly disturbing the planning of my tennis year (and) I'm already fearing that I won't (enter) Roland Garros with the confidence that I will be part of it into the final phase," she was quoted as saying in Belgian daily Het Belang van Limburg.

"I will have to adjust my ambitions and aim more at Wimbledon than at Roland Garros."

Clijsters, who suffered bone bruising and tendonitis in her left wrist in her second round victory over Germany's Angelika Roesch at Indian Wells, added it is doubtful whether she would play in Belgium's Fed Cup clash with Croatia later this month.

"It's perfectly possible that I will only decide that same day whether to play or not," she said of the April 24-25 world group first round tie in Bree.

The French Open runs from May 24 until June 6 with Wimbledon beginning on June 21.