Tom Brady has the utmost confidence in himself.
The Patriots quarterback pre-filmed a commercial for Shields MRI showing him with five Super Bowl rings. Pretty bold move when you think about the fact that the Falcons were up for most of Super Bowl LI. Obviously the Patriots came back to win it and allowed Brady to obtain his fifth ring. There's also a subtle shot at NFL Commissioner Roger Goodell with a "Roger that!" at the end.
This commercial never would've seen the light of day had the Patriots not made that spectacular comeback. Well done.