Rossi was back on a bike just 18 days after breaking his right leg in two places. Picture: MotoGP.com

Misano Adriatico, Italy - Yamaha's Valentino Rossi will try to make a race return at Motorland Aragon in Spain this weekend, three weeks after breaking his leg in an off-road training accident, if MotoGP doctors give him the green light.

The 38-year-old Italian great was back on track in testing on Monday, 18 days after suffering a double fracture, and did another 20 laps on a Yamaha R1M road bike at Misano on Tuesday.

He underwent a medical in Italy on Wednesday and decided that while his leg had not fully healed, the result was 'positive'.

"At the end I decided I will leave for Aragon and will try to ride my M1 this weekend," he said. "If I will be declared fit to ride, I'll have the real answer after first free practice on Friday, because riding the M1 will be a much bigger challenge. We'll see."

Rossi will have to pass a mandatory physical check by the chief medical officer at MotorLand Aragon, a circuit near Alcaniz in northern Spain, before he can participate. 

Demanding circuit

After missing the San Marino Grand Prix at Misano, he is fourth in the championship, 42 points behind joint leaders Marc Marquez and Andrea Dovizioso with five races remaining.

Team director Massimo Meregalli said: "It remains to be seen if Valentino feels he can complete the entire race weekend, which is very demanding, especially at a circuit such as MotorLand Aragon, with big elevation changes.

"Should Vale feel that his injury is causing him too much discomfort, then Michael van der Mark will step in as replacement rider."

Superbike Mike

Dutch Superbike rider Van der Mark, 24, has never ridden a MotoGP bike before. He previously competed in seven 125cc (now Moto3) races in 2010 and the 2011 Dutch Moto2 round.

He's also a three times winner of the Suzuka eight hours endurance race and has raced at Motorland Aragon seven times with World Superbikes and other support series.

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