Watch Tony Romo's PERFECT Brady, Manning, and Favre impressions

It's no surprise that Tony Romo picks up on the smallest idiosyncrasies -- how Tom Brady tucks his left arm in during his follow through or Brett Favre's old pre-throw shuffle. Football nerds eat that stuff up.

Speaking of which, Kimmel said he first discovered Romo's gift at a dinner party. Credit the host for not letting his guest leave until he shared his QB-mimicking stills with the world.