Mata's 9th in minutes played for us this season. Keep in mind that he hasn't finished a single game this season usually being subbed off with 15-20 mins left. Martial's 15th.
Yeah, I get the reasons. I mean, if we start both (not tonight but eventually) we could still have a potential bench of one of Mata/Mkhi, Lingard, Fellaini and eventually Zlatan as potential game changers.
Also, when Pogba's back, I'm sure we could still control the midfield with both playing. Not always as there's been times, with Pogba, when one or the other hasn't started, we still haven't been great at controlling the midfield, but it's not a certainty that we wouldn't. City's midfield are better, but they do it with Fernandinho, Silva and De Bruyne with out and out attackers in Sterling, Sané, Jesus. I'm sure we could do alright with Matic, Pogba and one of Mata/Mkhi with out and out attackers in Martial, Rashford and Lukaku.