It’s no secret that quarterbacks perform worse when under pressure from the opposing pass rush. You hear it on every NFL broadcast and every talking head pre-game show. Good as he is, Tom Brady is no different. He’s obviously more than capable of making game-changing plays when hit or hurried — he’s Tom Brady, after all; but on the whole he’s not nearly as effective throwing the ball while staring down rushers as he is when he has a clean pocket to throw from.
Source: CBS Sports