On May 6, 2015, the NFL published a 243-page report regarding the deflation of footballs used in the previous season's AFC Championship Game. The report concluded that, more likely than not, Brady was at least generally aware of the intentional deflation. On May 11, Brady was suspended for four games by the NFL for his involvement based on "substantial and credible evidence" that Brady knew Patriots employees were deflating footballs and that he was uncooperative with the investigators. That day, Troy Vincent—NFL Executive Vice President of Football Operations—penned a letter to Brady that stated in part: "Your actions as set forth in the report clearly constitute conduct detrimental to the integrity of and public confidence in the game of professional football." Brady, through the NFL Players Association, appealed the suspension on May 14.