Carlisle 0 – Sunderland 1: Mikael Mandron gets the winner [Official highlights]
Mikael Mandron scored the winner after 71 minutes at Brunton Park to hand Sunderland their second pre-season win.
The 19-year-old Frenchman came off the bench for the Black Cats, before cutting in from the left and finding the target.
The biggest concern for Sunderland came midway through the first half when Modibo Diakite limped off injured.
Sunderland face Hartlepool United on Wednesday before jetting off to Spain to continue their pre-season schedule.