But following just two Premier League starts upon his return, Lingard knew it was time to leave at the end of the following season.
Lingard played the full 90 minutes as FC Seoul lost 2-0 to Jeju United in their season opener on Saturday.
He was appointed club captain after recovering from a knee injury last season, going on to score six times as FC Seoul qualified for the Asian Champions League.
Last week, Lingard hit back at an unfounded accusation from an online troll that he, Marcus Rashford and Paul Pogba "destroyed Man Utd's culture".
Many fans replied in support of Lingard and Co, with one fan saying: "You made us play well which some dumb b******* that 'support' this club don’t like because you dance and have fun.
