Trivia: The movie is supposed to be in Washington D.C. Washington doesn't have a football stadium. The Washington Redskins play in Landover, MD. So the movie was filmed in Baltimore, MD. They used Camden Yards, Orioles stadium, and the stadium where the Ravens play.
During the last game he slides into the endzone and when he stops the centre of his body is clearly on a border of green field and grey field. But when the shot changes to a different camera he is nowhere close to any green field.