Seven-time premier class world champion Valentino Rossi was taken to hospital after suffering concussion in crashing out of the Aragon Grand Prix on Sunday.
The Italian had come into the race full of confidence after winning last time out in San Marino, but any chance of a repeat performance ended early on as he ran wide onto the grass at the rain-hit Motorland track and was thrown from his bike.
The bike narrowly missed the prone 35-year-old as it came to ground but Yamaha team doctor Michele Zasa said he was confident Rossi would suffer no serious ill effects.
"Valentino suffered a concussion with a suspected loss of consciousness," Zasa said in a team statement.
"From a neurological point of view he has recovered very well. He was taken to hospital in Alcaniz to make a further check, in particular a CT scan of the skull that has ruled out any bleeding in the brain.