Uefa confirmed on Monday Bailly would miss United’s European Super Cup with Real Madrid in two weeks and the Champions League group stage opener after being set off in the Europa League semi-final second leg.
He received a straight red following a skirmish with Celta Vigo at Old Trafford and Uefa decided to impose a three-match ban.
Speaking about his decision, Mourinho has revealed his understanding.
“I think we will understand the reason in a couple of days,” Mourinho said. “Bailly is suspended for the first two matches (in the Super Cup and Champions League), as you know, and I think in the next couple of days we will have the understanding of why I play Lindelof and Smalling.”
Mourinho subbed Lindelof, Smalling and Daley Blind at halftime against Barcelona on Wednesday and admitted that he was unhappy with some of United’s defending.