(CNN) -- The New Orleans Saints admitted Tuesday to paying bonuses for hits that would knock opposing players out of a game, vowing the practice won't be repeated. Saints Head Coach Sean Payton and General Manager Mickey Loomis said they take "full responsibility" for the practice, which they said "happened under our watch." "These are serious violations, and we understand the negative impact it has had on our game," Loomis and Payton said in a statement issued Tuesday evening. "Both of us have made it clear within our organization that this will never happen again, and make that same promise...