Some NFL players that are vegans include G Deuce Lutui (Seahawks), FB Tony Fiammetta (Pats), RB Ricky Williams (formerly with the Dolphins).
Robert Parish, Boston Celtics Center has been a vegan for a long time; so are HOF Bill Walton (a real banger at Center) and PFW John Salley.
Baseball great Hank Aaron was a vegan. I think he had 755 career home runs.
Former QB Joe Namath was a vegan.
Once he was asked the question and provided the following answer:
“I have been a vegetarian for a few years. Fred Dryer (DE) of the Rams has been one for ten years. It shows you don’t need meat to play football.”
Martial art legend Bruce Lee was a vegan; so is Chuck Norris.
Some light are shed here for those who might be interested:
http://www.pcrm.org/search/?cid=251