Jamal Duff (b. March 11, 1972) is an American actor and former American football player in the National Football League. He played college football at San Diego State University, then played in the National Football League for the New York Giants and Washington Redskins. He has appeared in S.W.A.T., The Rundown, The Eliminator, Dodgeball: A True Underdog Story (as Ben Stiller's fitness consigliere), Revenge and The Game Plan. Duff attended San Diego State University and was Graphic Design Major and a letterman in football. In football, as a senior, he finished the season with 35 tackles and 7.5 sacks and was a second team All-Western Athletic Conference selection. As a junior, he was named as the Aztecs Outstanding Defensive Player of the Year.