A video, filmed from the grandstands, has emerged, and it shows the sheer violence of the hit. If you don't feel that it's right to watch it, don't click on it, it might be hard to swallow. Edit: FOM already took it down, but I found a reupload. In case the video is blocked again, here are a few screengrabs by McMike.
Edit 2: Gfycat version is now available too.