Mo Vaughn:
Similar to others on this list, Vaughn was a fan-favorite slugger whose numbers at the plate overshadowed his deficiencies in other areas of the game. Indeed, he was a powerful presence at the plate. Vaughn was a three-time All-Star who maintained a .293 batting average with 328 home runs and 1,064 RBI. He even won an American League MVP in 1995.
But for all that Vaughn did at the plate, he wasn’t quite able to match that in the field. His position of first base isn’t exactly regarded as the most difficult of fielding positions, yet Vaughn still put out horrible fielding percentage numbers. He committed far too many errors, resulting in a career percentage of only .988. Vaughn also admitted to using a performance-enhancing drug called Human Growth Hormone (HGH) in 2001. For those reasons, Vaughn’s overall rep doesn’t live up to his booming numbers hitting the ball.