Matic, who arrived at Old Trafford from Chelsea at the start of the season, was substituted after 55 minutes of United's 4-2 win at Watford in mid-week with Mourinho saying the Serbia global had a muscular problem.
The colourful, explosive rivalry between Arsenal and Manchester United is set for its latest installment on Saturday as the Red Devils pay a visit to Emirates Stadium. Firstly, Barthez inexplicably drove an attempted goal kick straight to one of the Premier League's most deadly finishers who rolled the ball into an empty net.
"I play a game at a time, I play a game at a time and is the way to do it, is the way to do it", he declared.
Shaw had earlier told media that Tottenham coach Mauricio Pochettino used to treat him like his child while they were still both at Southampton, paving the way for rumours about his departure and apparent reunion with his former manager.
"It's just Arsenal. We don't think about how many points we are ahead of them or behind the leader".
A final 10 minutes of madness from flamboyant French goalkeeper Fabian Barthez cost United a point at least, as he gifted United tormentor in chief Thierry Henry two goals to hand Arsenal a win.
"I play a game at a time and that is the way to do it", Mourinho told reporters on Friday. It is just the game, it is Arsenal. We don't think how many points we are in front of them, how many points we are behind the leader.
BMW i8 Roadster unveiled alongside Coupe update
In electric-only mode, the top speed is 120km/h, while the driving range is now up to 53km in the soft-top, and 55km in the coupe. The long-awaited i8 Roadster will go on sale alongside an updated version of the two-plus-two i8 coupe early next year.
Mourinho was asked if he was more like McEnroe, and that Arsenal counterpart Arsene Wenger the equivalent of Borg.
"I've played three games in a row".
"I don't think the striker should be dropped and I am convinced it wouldn't do Lukaku's confidence any good if he was left out in such a big game".
"I think in the beginning of football, the guy who decides to say defenders, attackers, this guy was bad".
"When we have the ball, we are going to attack with 11 players".
Marouane Fellaini (muscular), Eric Bailly (groin/hip), Phil Jones (thigh) and Michael Carrick (heart condition) are also missing for the match. "Let's see the feeling before the match, let's see the warm up, I hope he can (play)".