By Alek Arend The NFL world was hit with incredibly sad news earlier this month. John Clayton, the longtime NFL insider, passed away following a battle with a “brief illness.” He was 67 years old. Many have paid tribute to Clayton following his passing. New England Patriots head coach Bill Belichick is the latest. On Monday, Belichick called Clayton a “great ambassador for the game” and sent his heartfelt condolences to his family. “John was a great ambassador for the game – he loved football,” Belichick said. “Loved the Hall of Fame … and was very, very knowledgeable. Condolences to his famil…