This MUST BE a psychological ploy to motivate his former team. Much like Jimmy Johnson's guarantee that the Cowboys would beat the 49ers in the NFC championship game, just to give them that extra incentive.
I'll bet you the Commanders will be fuming mad and raging. The Cowboys, haven't forgotten the Monday night game, and....
THE COWBOYS WILL WIN THE BALL GAME
and you can put that in three inch bold letters.