The school announced Doutrive's suspension before Friday night's 74-65 exhibition win over Chico State.
Doutrive was a five-star recruit from Southern California in the 2018 class and was expected to have an immediate impact as a freshman. The athletic 6-foot-5 guard showed flashes last season but was inconsistent, averaging 3.3 points and 3.0 rebounds while playing 26 of 32 games.
Doutrive initially planned to transfer from Arizona this summer before opting to return. Wildcats coach Sean Miller praised Doutrive's improvement heading into this season.