The Yankees optioned Dominguez to Triple-A Scranton/Wilkes-Barre following Monday's 13-7 loss to the Cardinals.
Dominguez is expected to give up his spot on the 26-man active roster and in the everyday lineup to outfielder Heliot Ramos, whom the Yankees acquired in a trade with the Giants on Monday. Since making his return from the injured list June 13 after recovering from an AC joint sprain in his left shoulder, Dominguez slashed just .235/.274/.382 with five home runs, seven steals, 10 RBI and 18 runs in 44 games.