Ferrari's team boss has refused to completely rule out a return before the end of the 2009 season for the recovering Brazilian driver Felipe Massa.
Massa, 28, sustained serious head injuries at July's Hungarian round of the world championship, but has already announced he intends to race karts at events in Brazil in November and December.
Ferrari's Stefano Domenicali then revealed that Massa is already back in physical training, and is set to get at the wheel of a go-kart this week.
Domenicali was therefore asked by reporters in Singapore if a return to Massa's number 3 Ferrari can be expected at any of the remaining races of this season.
"I don't want to exclude anything, but we need to be cautious," he is quoted as saying by the Daily Telegraph.
Domenicali is also quoted as saying by sports.fr: "He will be back to 100 per cent, but there is no need to rush anything."