As The Sun delicately puts it, "LUCKLESS Guenther Weidlinger puts the CHUMP into the World Athletics Championships yesterday as he careers head-first into a hurdle."
Via With Leather, which has stills. (With Leather features photos of scantily clad women.)
*Update: Commenter "Martha Allen is fat" points out that the race being run in the video is a steeplechase, and says that the barrier is called a "steeple," not a "hurdle." Wikipedia offers this information about steeplechase barriers (which is clearly correct, as demonstrated in the video): "Unlike those used in hurdling, steeplechase barriers do not fall over if hit."
Espn forced YouTube to remove it, but you can still see part of it here: