With the recent promotions of players like Mike Trout and Bryce Harper to big league clubs (and the early success that indicates they are here to stay), baseball fans are starting to wonder who will be the next rising stars to get the call.
There are still hundreds of talented prospects waiting for their turn in the minor leagues. Each farm system has a star or two that may be called up late in the season when the rosters expand to fill a bench or bullpen role. And some teams even have players that could come up earlier and see immediate time like Trout and Harper.
Here are the 10 players who are guaranteed to be called up during the 2012 season: