Robert Griffin III
Griffin was electric as a rookie in 2012, throwing for 3,200 yards, 20 touchdowns, and five interceptions in 15 games, adding another 815 yards and seven scores on the ground. But he injured his right knee in Week 14, then again in the playoffs. He took a step back statistically in 2013, then suffered a dislocated ankle in Week 2 of 2014 and played in just 12 more games in his career.