Although United are all but mathematically through to the knockout stages of the Champions League for the first time in four years, there's still work to do with CSKA Moscow visiting the Old Trafford on Tuesday night. He then added: "I can make a surprise tomorrow and the one that is unavailable, he plays".
But with Manchester United simply required to avoid a five goal defeat in order to top Group A - and six to go through - and you can only imagine that the Portuguese will rejig his line-up ahead of Sunday's decisive clash with Manchester City.
"But when we speak about Luke Shaw, he's working to have an opportunity and sooner or later that opportunity will arrive because he deserves that opportunity".
"He is okay but he needs, now and again, specific work on the muscle that supports that knee that went through such a hard surgery", the boss told us.
"When the time for that hard work comes the fatigue comes. But he's very happy to play and to try to keep his momentum because since he was back from injury, he's been phenomenal", Mourinho explained.
'De Gea is third best right now' David de Gea made 14 saves in the game against Arsenal, the joint-most in a Premier League game since 2003-04, when Opta started collecting this data. My goalkeeper is always the best goalkeeper in the world.
The boss later told reporters that Sergio Romero will start against CSKA Moscow with Joel Pereira on the bench as our back-up goalkeeper, providing David De Gea with a well-earned rest following his heroics against the Gunners at the Emirates Stadium on Saturday.
"Now David is third best".
'But we started the game really well, we scored two important goals and it's true that we lost a bit of a control of the game after. We didn't qualify yet and I need to keep a certain balance in the team.
The Red Devils have won their last 13 matches played at Old Trafford and are hot favourites to win with Bet365 at the price of (1.40).
"Selected for tomorrow, yes for sure".