Osuna was optioned to the Pirates' alternate training site following Wednesday's loss to the Twins, Jason Mackey of the Pittsburgh Post-Gazette reports.

EDGE Analysis

Pittburgh needed to trim its roster to 28 players by Thursday's roster deadline, and Osuna is being demoted as a result. The 27-year-old began the season 3-for-8 over the first two games, but he's 0-for-11 in his last five appearances.