The Cincinnati Reds haven’t had a traditional left-handed reliever all season long. Tony Cingrani, Wandy Peralta and Cody Reed are all former starting pitchers. None of them is significantly better against left-handed batters than they are against right-handed batters.
Cingrani was the closer for the Reds last year. It caused him to face left-handed and right-handed batters in equal proportions. He allowed similar slugging percentages to both, but struck out lefties more and held them to a lower OBP. Even before those outcomes many wondered what Cingrani’s best use would be with the Reds, including his unusual versatility into the mix.