Tiki Barber has filed papers to come out of retirement. The 36-year-old running back will attempt to step onto an NFL field and play again after "retiring" for four years.
It is unknown what the interest level is for Barber right now, but undoubtedly some teams would be interested in seeing if the former New York Giant still has something left in him.
Of course he won't be the first athlete to pull the old switcheroo when it comes to retirement. Countless other athletes have called it quits only to change their minds. So who were they? And how did they do? Look ahead at 10 prominent athletes who came out of retirement.