Milan's Brazilian striker Ronaldo has said he is recovering well from a career-threatening knee injury and expects to be able to run again in two or three weeks.

"The knee is going very well. Now we are starting work to reinforce the muscle. I'll start running in two or three weeks," Italian media quoted Ronaldo as saying at the French Grand Prix yesterday.

Ronaldo, 31, added he hoped to upset doctors' predictions that he would be sidelined for at least nine months after having surgery on a ruptured left knee tendon in February.

"I'm optimistic. I might be able to return early, although it's early to say with precision. I want to play," La Gazzetta dello Sport quoted him as saying.

"I have moved to Paris for a while to continue the rehabilitation. Seeing as I'm close by, I decided to come to watch the Formula One.

"It's a wonderful atmosphere and I am cheering on Ferrari due to my history with Italy and also my friend Felipe Massa, who is driving."

Ronaldo's contract with Milan runs out this month and he said he still does not know if he will be offered a new deal.

"I don't know what to say (about the contract)," the three-times World Player of the Year said.

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