But the Cubs came back to take the lead in the bottom of the second. Nico Hoerner led off with a walk and stole second. Owen Caissie singled him in [VIDEO]. Two outs later, Michael Busch sent a triple down the right-field line, scoring Caissie [VIDEO].

Caissie made his major-league debut Thursday but was out of the Cubs' starting lineup in all three games of their series against the Pirates, only appearing as a pinch hitter in the last game.

Caissie's thunderous bat could not save a Cubs offense desperate for a clutch hit and searching for any sort of rhythm.

The Chicago Cubs made the surprising decision to promote the organization's top prospect, Owen Caissie, to the majors ahead of the final game of their series ag

Owen Caissie makes two stellar running catches in the top of the 3rd inning and locks down the deep right-field corner at Wrigley