Apparently Grischa Janorschke the NetApp rider who crashed spectacularly just as he entered the Arenberg Trench during last Sunday's Paris-Roubaix, didn't come out unscathed as was originally thought. Unfortunately, Grischa sustained a some shattering of his left elbow and a fracture of his left ulna (arm) near the elbow. This was his thrid major crash of the year after crashing out of the Ronde van Drenthe just over a month before P-R with a broken collarbone, and then as a result of the finish line mayhem at the Scheldeprijs crashed and got three stitches in the back of his head. Also, in contrast to speculation about the crash being a result of slipping on the damp cobbles, the current reason for the crash is Janorschke's tire blowing out

Here: is a link to the original article by Chris, and the video that goes along with it (by Chummy93)

Crash Paris Roubaix 2012 Trouée d´Arenberg (via alfredorodiaz)

Notice how in this video you can see the NetApp rider hold his left arm.