Krumrie’s Broken Leg
It may seem strange to call Tim Krumrie’s broken leg a mistake. But it belongs on this list because nobody tackled him. The Bengals played the 49ers and hoped to break their Super Bowl dry spell. In the end, Joe Montana and his team were simply better. However, it didn’t help that Krumrie exited the game with a brutal injury.

The nose tackle awkwardly placed his foot on the ground and it twisted underneath him. TV viewers witnessed a horrifyingly graphic injury as it turned and snapped. Krumrie broke multiple bones in his leg and required a titanium implant. Luckily, he recovered and made a successful NFL comeback (via SBNation).