From descriptions, this sounds very bad, with "lots of blood" coming from a head wound.
Pittsburgh has some of the best health care facilities in the world. He is young and strong. I wish him the best.
I am thinking a good thought for him.
Video from one of the PGH tv stations:
http://www.thepittsburghchannel.com/video/5839843/index.html
GO STEELERS!
Head injuries bleed a lot, but it doesn't mean a damn thing.
ESPN is reporting that the injuries aren't life threatening.
Head wounds always bleed profusely.