WATCH: Bills' Sean McDermott locker room speech post-Patriots win

Buffalo Bills head coach Sean McDermott was so excited that he lost his voice.

After the Bills (10-4) rallied to beat the New England Patriots (11-3), 35-31, in Week 15, McDermott’s voice cracked as he addressed his team.

Both the coach and players had a laugh about it, but McDermott rolled on and expressed the same excitement after all of Bills Mafia had.

McDermott’s full locker room speech following the Bills’ win over the Patriots can be found below:

WATCH: Bills’ Sean McDermott locker room speech post-Patriots win