Mazzoni was outrighted to Triple-A Iowa on Monday, Mark Gonzales of the Chicago Tribune reports.
Mazzoni was designated for assignment by the Cubs on Thursday.
Mazzoni was optioned to Triple-A Iowa on Sunday, Mark Gonzales of the Chicago Tribune reports.
Mazzoni was called up from Triple-A Iowa on Saturday, Mark Gonzales of the Chicago Tribune reports.
Mazzoni was optioned to Triple-A Iowa on Wednesday, Mark Gonzales of the Chicago Tribune reports.
Mazzoni was recalled from Triple-A Iowa on Sunday, Alyson Footer of MLB.com reports.
Mazzoni was optioned to Triple-A Iowa on Monday, Mark Gonzales of the Chicago Tribune reports.
Mazzoni was recalled from Triple-A Iowa on Wednesday, Jesse Rogers of ESPN.com reports.
Mazzoni was sent down to Triple-A Iowa on Tuesday, Carrie Muskat of MLB.com reports.
Mazzoni was recalled from Triple-A Iowa on Monday, Mark Gonzales of the Chicago Tribune reports.