Mata netted his third brace of his Manchester United career, scoring both goals for the Red Devils in a Boxing Day fixture against Leicester City. However, his efforts were cancelled out by a late equaliser from Harry Maguire which saw the match finish 2–2. Mata finished the season with three goals in 40 appearances for the Red Devils, as United finished second in the Premier League and lost in the 2018 FA Cup Final against his former club, Chelsea.