The manager remains unsure on whether Matic will be able to make his 15th consecutive league start for United as they continue to chase league leaders Manchester City, who are eight points clear at the top.
The 24-year-old played 84 minutes of the victory at Vicarage Road and notched up a goal and an assist for Jose Mourinho's men in an impressive performance.
There is sport at all hours this weekend as England sides compete on the big stage in Australia while, closer to home, football fans can tune into a full complement of Premier League fixtures - headlined by Arsenal v Manchester United.
Last May Arsenal won 2-0 against an admittedly under-strength United side as Mourinho kept some of his squad fresh for the business end of their Europa League campaign.
Manchester United Manager Jose Mourinho has finally named the price at which he is willing to sell out of favour English left-back Luke Shaw.
"You sacrifice, but you enjoy it, so you go through it and you just want to recover to play those games".
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"I don't know if he can play", Mourinho admitted. They will attack as well. They will not only defend... I just want to focus and to prepare well my team, and give my team a good chance to win the game.
The special one takes on a "specialist in failure".
Then again, Mourinho has earned the right to lord it over his French rival with only two defeats in 17 matches against Wenger.
"Is just the game, is Arsenal, we don't think about how many points behind, is just Arsenal, is hard enough for us to be focused on other things".
To be fair he did win two trophies last season, has them second this term and all but in the Champions League last 16. The Gunners have been fantastic at home in this campaign as they won all seven Premier League matches at Emirates, scoring 20 and allowing only four goals in the process.
It is still far from "game, set and match" - and Mourinho knows it. The Mail helpfully puts some perspective on those figures, saying "it is enough cash to run the National Health Service for three days or pay for 22 new secondary schools".