Rookie right-hander Jacob Misiorowski is on the Milwaukee Brewers’ 26-man roster for their National League Division Series versus the Chicago Cubs despite stumbling down the stretch of the regular season.

Brewers manager Pat Murphy said that the 23-year-old fireballer won’t start in the playoffs but will have a role out of the bullpen.

Misiorowski (5-3, 4.36 ERA) arrived as a sensation upon his June debut, earning NL Rookie of the Month after posting a 3-0 record and 1.13 ERA with 19 strikeouts to seven walks in his first three starts.

However, he faded down the stretch with a 5.89 ERA over his final nine regular-season appearances. He also had a stint on the injured list with left tibia contusion after he was hit by a comebacker on July 28.

Still, a 6-foot-7 righty who regularly throw

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