The Cubs optioned Mastrobuoni to Triple-A Iowa on Wednesday, Taylor McGregor of Marquee Sports Network reports.
The Cubs recalled Mastrobuoni from Triple-A Iowa on Sunday.
The Cubs optioned Mastrobuoni to Triple-A Iowa on Tuesday, Meghan Montemurro of the Chicago Tribune reports.
Mastrobuoni is out of the lineup for Sunday's game against the Diamondbacks.
Mastrobuoni will start at third base and bat seventh in Sunday's game against the Cardinals.
Mastrobuoni is out of the lineup for Wednesday's game against the Orioles.
Mastrobuoni will start at third base and bat eighth in Friday's game against the Angels.
Mastrobuoni was called up from Triple-A Iowa on Tuesday.
Mastrobuoni will start at shortstop and bat sixth in Wednesday's game against Atlanta, Maddie Lee of the Chicago Sun-Times reports.
Mastrobuoni went 3-for-4 with a walk, a double, an RBI and two runs scored in Saturday's 10-9 loss to the Pirates.