Rafael Nadal has confirmed he may have to pull out of next month's Indian Wells Masters because of his fragile knees.
But he still intends to travel to California and he has denied reports that he would head home after competing in this week's event in Acapulco, in order to save himself for the European clay court season.
Nadal, who won in Indian Wells in 2007 and 2009, is also undecided about playing in the Key Biscane event, which takes place the following week.
"My intention is to go to Indian Wells," Nadal said. "This is the truth because I love this tournament and the priority is to play.
"But if I don't feel comfortable playing and decide to wait to play on the hard courts, that's how it will be and I'll rest for the clay-court season in Europe. But today I can't answer."
"Even when the knee is perfect I had some days better than others. Right now I have had three days in which the knee has felt fine and that makes me happy, that we're going in the right direction."
In Brazil recently Nadal was critical of playing on hard courts and has suggested it has caused the knee injuries that are threatening his career.