If you enjoyed reading this article, please click here to view it on Kropotkin's site, MotoGP Matters. ----------------- Dani Pedrosa's career as test rider for KTM has gotten off to an unlucky start. The Spaniard has suffered another broken collarbone, and will require surgery and a long recovery process before he can start testing again. Pedrosa's injury is a legacy of the many previous times he has broken his collarbone. The right collarbone is severely weakened after being broken twice before, and having surgery to fit plates. That has left him with a so-called sclerotic lesion on the collarbone, which means that bone growth in the collarbone is very slow. That, and a lack of blood flow to the bone, has left him with osteoporosis, and a weakened collarbone. Just how weakened is clear from the fact that Pedrosa managed to break the bone without any particular physical impact. He had broken it as a result of 'a gesture of strength', he said in a press release, by which he presumably means a sudden and strong movement. That endemic weakness means Pedrosa faces a long recovery process. He is to undergo treatment with stem cells to help promote bone growth and strengthen the bone, to prevent a recurrence.