After further medical tests, Repsol Honda MotoGP star Dani Pedrosa has been diagnosed with intermittent compression of the subclavian artery, causing numbness and lack of strength in his left arm.
Pedrosa, who underwent surgery last October to set a double fracture of his left collarbone - after a crash in practice for the Japanese MotoGP, caused by a throttle malfunction - will undergo a new operation following this weekend's Spanish MotoGP.
Due to the postponement of the 2011 Japanese round, following the earthquake and tsunami, Pedrosa will then have almost four weeks to recuperate before the Portuguese event at Estoril from April 29-May 1.
Pedrosa was leading the season-opening 2011 Qatar Grand Prix until struggling with his left arm from mid-distance onwards.
The Spaniard slipped to third by the chequered flag and looked devastated that the problem, which he first encountered in the final races of 2010, had returned.
In the upcoming operation, the titanium plate and screws will be taken out of the collarbone in order to release the compression pressure.
“It's never nice to have an operation, but we've had a lot of time searching for an answer to the effects of this injury and I'm relaxed because I finally know what has happened,” said Pedrosa.
“Now, we are in Jerez and I want to concentrate on the race, working with my team in best possible way to prepare the Grand Prix. This race is special, the crowd is always there to give you an extra point and I hope it helps me, as always.
“I like the track, I've had always good results here and I face the weekend with an open mind, trying to do my best in my current condition”.
Pedrosa lost out on victory at Jerez last season after being passed by countryman Jorge Lorenzo on the very final lap. Pedrosa has now confirmed he had a 'technical problem' (see separate story).