Cape Town - Nine-time MotoGP champion Valentino Rossi returned to action on Monday, just 18 days after suffering a double leg fracture.
The 38-year old is set to decide on Wednesday whether he will take part at this weekend’s Aragon Grand Prix in Spain.
The Italian is currently fourth in the MotoGP standings, 42 points behind leader Marc Marquez with five races left.
Rossi’s Movistar Yamaha team said on Monday that ‘the Doctor’ had managed to complete several laps at Misano before the session was cut short by rain.
His father Graziano was quoted by Motorsport.com as saying Rossi had felt some discomfort.
"I was told he felt a lot of pain in his right leg, but he could not determine in so few laps whether a return at Aragon could be possible," he said.
Rossi had an operation on his right leg after damaging it in a training accident on August 31.
A statement from the Italian’s Movistar Yamaha team said: "As today's riding session was cut short due to the change in weather, the evaluation of Rossi's physical condition was inconclusive.
"He will decide by the end of Wednesday, 20 September, whether he will attempt to take part in this weekend's Gran Premio Movistar de Aragon."
Yamaha team boss Lin Jarvis said last week that he doubted Rossi would race in Spain unless he felt he could be finish in the top five or six positions.