Even though pass pressure only occurs on roughly a quarter of NFL pass plays, it creates havoc on the field, and can often lead to significant, game-deciding results. Have you heard the one about the time the Falcons blew a 28-3 lead? The two biggest plays in Super Bowl LI were not any of the 85 passes that left the hands of Tom Brady and Matt Ryan, but rather two sacks on ill-advised decisions by Atlanta. Ryan was strip-sacked on a third-and-1 deep in his own territory, then later went down for another sack on second-and-11 after the Falcons were in field goal range with a 28-20 lead in the final four minutes.