SAN FRANCISCO -- Super Bowl history is filled with great performances from the biggest stars, such as Jerry Rice, Tom Brady and Emmitt Smith.
Then there are some unlikely performers who just happened to have their best game on the biggest stage. Here are a few of the notable players who are remembered almost exclusively for their unlikely Super Bowl stardom:
TIMMY SMITH
With starter George Rogers banged up, Smith got his only career start in a bit of a surprise in the 1988 Super Bowl for Washington. Smith had a 58-yard touchdown run in Washington's 35-point second quarter and finished the game with a Super Bowl-record 204 yards and two scores in a 42-10 win over Denver.