The clubs that made attempts to sign Mainoo included Tottenham, Aston Villa, and Everton from the Premier League, as well as Marseille, Roma, and Napoli from the continent.

However, United decided to keep Mainoo at the club, citing his importance to the team.

Before the team's win against Burnley, manager Ruben Amorim stated that he wanted Mainoo to stay and fight for his place in the team.