Moments after his team's 37-16 loss to the Patriots on Sunday night, Jets coach Rex Ryan lost his cool for a moment and cursed a fan. The NFL is looking into the incident, a league spokesman confirmed. "Hey, Rex, Belichick is better than you," the fan screamed to Ryan, who was walking off the field and into the locker room tunnel with the rest of the team. "Shut the f--- up," Ryan yelled back. Ryan could be subject to a fine by the league or the Jets.