Alese, who made two senior appearances for West Ham United, joined Sunderland in the summer on a three-year contract.
The 21-year-old’s tenure on Wearside got off to a slow start, with just two brief substitute appearances and a start in the EFL Cup, before Mowbray handed him two consecutive league starts in the absence of Dennis Cirkin.
The centre-half also scored in Sunderland’s 2-2 draw against Watford on 17th September and Mowbray admitted that the player has performed brilliantly when given the opportunity.