The Chicago Cubs have promoted catching prospect Moisés Ballesteros for his MLB debut. Ballesteros is hitting seventh as the DH in Tuesday's game against the Miami Marlins. In a

Moises Ballesteros is one of the most precocious and gifted hitting prospects in the game, yet he also presents something of a development dilemma.

The Cubs are calling up intriguing prospect Moisés Ballesteros to replace injured outfielder Ian Happ, and Eric Samulski explains why the catcher/first baseman brings major offensive potential to Chicago.

Of course, that doesn't mean Webb is likely to be the next man up for the Rangers – Chris Martin has been the team's best high-leverage reliever this season, but he had already pitched in a setup role before Jackson exited Monday.

One of the top prospects in the system is about to get closer to his dream with a golden opportunity to finally make it come true.