The Yankees optioned outfielder Clint Frazier back to Triple-A Scranton/Wilkes-Barre after Sunday's 10-1 win over the Kansas City Royals.
Frazier, 22, was called up earlier this week and went 1-for-2 with a double and two walks in his season debut in Saturday's 8-3 win.
He started the season on the disabled list after suffering a concussion during spring training. Once he was activated off the DL, he started the season with the Triple-A RailRiders, with whom he hit .362 with three home runs and four RBIs in 12 games.
On Monday, the Yankees recalled RHP Giovanny Gallegos to the 25-man roster as a corresponding move. Gallegos, 26, has given up three runs and four hits in four innings of relief this season at the Triple-A level. Last year, he went 0-1 with a 4.87 ERA in 20 1/3 major league innings and 4-2 with a 2.08 ERA in 43 1/3 minor league innings.