Eli Manning got wrecked

[Chris]

Split his head wide open on another players shoulder pads after his helmet came flying off from a hard hit. Apparently the play was designed to be a rush for Jacobs, but Manning called an audible at the line without Jacobs realizing it, which resulted in this disaster...

http://www.nfl.com/videos/nfl-preseason/09000d5d819d4ed5/Giants-react-to-Eli-s-gruesome-injury