Mullane, who spent the 1884 season with the Toledo Blue Stockings, had a 36–26 record with a 2.52 ERA in 67 starts, striking out 325 batters.
Mullane was suspended for the 1885 season for defying his contract, as the Blue Stockings and the St. Louis Maroons, another team he tried to sign with, folded after the 1884 season, and the St. Louis Browns attempted to reclaim Mullane, as he pitched there in 1883.
On July 1, the Red Stockings acquired Jim Keenan and Larry McKeon, who both jumped from the Detroit Wolverines to join Cincinnati.
Infielders Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg.
= Batting average; HR = Home runs; RBI = Runs batted in Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts