While the majority of the Blue Jays roster struggled through the first half of the 2017 season, Roberto Osuna flourished, especially once he got over an early season hiccup in April. After that, he was nearly untouchable, and pitched his way to an All-Star selection in July as arguably the best closer in the American League in the first half.
Of course, things didn’t go that well for him in the second half, and it was very much a tale of two seasons for the 22 year old flame thrower. In a lot of ways, his inconsistent performance was indicative of the entire roster, and he was far from the biggest problem with the club, even if he lead the American League in blown saves.