However, the 23-year-old will miss today's clash with Bournemouth (1:30pm) through suspension after picking up two yellow cards in the Coppa Italia with Juventus last season.
And Mourinho has confirmed that the player - who spent much of the last three weeks on holiday in America - will be staying at the club's Carrington training ground for extra training.
"He will not be with us at Bournemouth," Mourinho is reported as saying by the Sunday People.
"He trains on Saturday and then again Sunday to be ready."
GETTY
Paul Pogba will have to wait until next week to make his second Man United debut
United will be aiming to get their bid to win a first league title in four years off to a flying start.
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