Ever since his crash at Motegi, caused by a sticking throttle, Dani Pedrosa has been plagued with a mysterious shoulder problem, causing numbness and weakness in his left arm. The Repsol Honda star had been hoping that the problem would pass over the winter, with rest over the enforced winter break allowing his shoulder to heal. That was not to be the case, however, as the issue resurfaced during the first race of 2011 at Qatar, Pedrosa getting off his bike after the race obviously in extreme discomfort.
Since then, multiple tests have been done to try and locate the cause of this problem, with the brachial plexus - the bundle of nerves controlling the arm, sitting directly under the collarbone - as the prime suspect, but tests carried out last week finally nailed down the cause. The screws holding down the plate inserted to fixate Pedrosa's collarbone were found to be blocking the subclavian artery - the artery that feeds all of the blood into Pedrosa's left arm - when he held his arm in specific positions.
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