Fans love a good comeback story, and baseball arguably produces the most of any sport.
Each season, there are at least a handful of players who once built strong reputations, only to fall on hard times -- through underperformance or, more often, injury -- and are forced to start fresh with a new club. Then, somehow, they manage to rediscover what made them great in the first place. These are the players who are easy to root for -- the ones who remind us that while a promising career can unravel quickly, things can turn around just as fast.