Pirates prospect Jameson Taillon to make major league debut against Mets on Wednesday

Jameson Taillon's career got back on track in a big way this year, and now he'll get to test himself in the big leagues. The 24-year-old righty was the second pick in the 2010 MLB draft, and he seemed destined for stardom with a big fastball and projectable frame any scout would dream on. Injuries stalled his development, though, and his prospect shine wore off some. There were questions about his mechanics and ability to maintain a major league workload.

Then 2016 started, and all he he's done so far is put up a 2.04 ERA with 8.9 strikeouts and less than one walk per nine innings in 61.2 innings innings at the Triple-A. The Mets can expect to see a classic powerful fastball-curveball combo with a fringe changeup that has flashed above-average at times this season.

There hasn't been word on whether the promotion is permanent or merely the result of the doubleheader the teams are playing today, but that could depend on how he pitches.