Bieber struck out the side in the fourth inning, baffling hitters with late-breaking sliders and well-located fastballs. His final line: 6 IP, 2 H, 1 ER, 1 BB, 9 K on 84 pitches. The only damage came off the bat of Javier Sanoja, who clubbed a solo home run in the second inning to left-center field.

Bieber looked sharp immediately. He struck out Xavier Edwards with an 82.6 mph knuckle curve and fanned Jakob Marsee with an 89.3 mph changeup in the first inning.

Toronto Blue Jays ace Shane Bieber made his much-awaited return to the mound against the Miami Marlins on Friday.