In a letter posted on his foundation's website, Drew Brees has denied any knowledge of former Saints defensive coordinator Gregg Williams' bounty program. The NFL has said Williams ran an improper pay-for-performance pool, which offered bonuses for big plays as well as big hits that forced opposing players from games. "I did not participate in any bounty program, nor did I have any knowledge relating to its real existence," Brees said. "I have spent the last several years as an Executive Committee Member of the NFLPA making health and safety a priority and I am proud of the advancements we've made and will continue to make. "We are all working diligently to find the truth in this matter and if the facts prove there was improper behavior, we will hold ourselves accountable. Until that time, we will stand together and remain united as an organization."