According to Merriam-Webster.com, the definition of an overachiever is "one who achieves success over and above the standard or expected level."
In creating this list, I compiled MLB players that have outperformed a variety of expectations. Some players qualified from their performance this season, such as Kirk Nieuwenhuis and Bryan LaHair, while others have destroyed their previous levels of expectations over the course of their careers, such as Jose Bautista and Albert Pujols.
Each player has a unique backstory. Some were "too small," others went to a small school nobody ever heard of (Indiana Wesleyan, anyone?), or they were drafted as low as the 39th round so their expectations coming into baseball were not high at all.
Here are 10 of the biggest overachievers in baseball today.