Every fantasy manager gets excited thinking about the upcoming rookie class. Everyone wants to cash in on an up-and-coming star—especially if you're in a keeper league.
Guys like Jeremy Hellickson and Craig Kimbrel rewarded fantasy owners last year, and Buster Posey and Jason Heyward were big boosts in 2010.
So who's the crop of the class for 2012?
Keep reading to see each team's rookie that you have to know.
To be considered a rookie, a player must not have exceeded 130 at-bats or 50 innings pitched or accumulated more than 45 days on the active 25-man roster.