He has no plans to leave Old Trafford but would like to ensure he would be given enough first-team football ahead of the World Cup next summer.
The signing of Victor Lindelof from Benfica has also pushed Smalling further down the pecking order with the Swede set to partner Eric Bailly in central defence.
With Marcos Rojo also sidelined until mid-season as he continues his rehabilitation from a serious knee injury, Smalling is confident he’ll be able to pick up
However, if the Portuguese boss decides to sign another centre-back this summer, as reports have suggested, it would put a significant question mark over his future.
Mourinho was openly critical of Smalling on multiple occasions last season and his career at the club didn’t look good until his brilliant performance in the Europa League final.
He hasn’t been the same player as Mike Smalling, who controlled the backline and was even backed as one of the best defenders in the league when Louis van Gaal was in charge.
Although West Ham and West Brom have both been expressed an interest in signing him, he’ll be hoping to sign for a Champions League club, even if the interest isn’t there at the moment.