Mourinho clearly would have seen it as a calculated gamble, with Champions League history being largely on United's side as they look to complete the second half of the task by winning at home in the second leg.
It took some callow finishing and some magnificent David de Gea-ing to preserve United's clean sheet, and if Sevilla manage to nick a goal tonight, then United will have to score twice, for away goals are worth 1.99 times more than real goals (subz plz check).
The Frenchman missed Saturday's 2-1 win over Liverpool after he suffered an injury in training.More news: Kanye West & Friends Back In Wyoming Working On His New Album
Sevilla travel to Manchester having drawn 0-0 with Jose Mourinho's men at the Ramon Sanchez Pizjuan on February 21 in the first leg of their Champions League round of 16 tie.
Sevilla were eliminated at this stage a year ago by Leicester City and they are the underdogs ahead of their first ever competitive match at Old Trafford.
Sevilla's Steven Nzonzi attends a training session at Old Trafford, Manchester, England, Monday, March 12, 2018.More news: Trump says 'disagreed on things' with Rex Tillerson
Writing in his personal blog, Mata said: "After a week with two big games, what can we say about the next one".
"We want to go as far as we can in the Champions League and that starts by beating Sevilla".
"It's a very special game tomorrow night for Seville. We are going to try to show we are better but I don't feel we have any advantage", Mourinho added.More news: Final Fantasy VII Remake team is hiring "core members"
The Andalucian club have not had a vintage season: they may sit fifth in the standings but languish 11 points off the top four and are aware that Tuesday may well be their last outing in the competition for some stretch of time.