2. Joe Theismann's broken leg, 1985: The fact that Giants linebacker Lawrence Taylor fell on Theismann's leg on the primetime stage of Monday Night Football has made this the most indelible of injuries. Theismann dropped back on a flea-flicker that did not fool the Giants defense and was swarmed by three defenders. Fans could sense that something was very wrong when L.T. immediately and furiously called for medical help. A reverse angle clearly showed why; Theismann's right leg had snapped clean in two. The compound fracture ended Theismann's playing career but launched one in broadcasting.