Fans think Manchester United missed a big chance by not letting Kobbie Mainoo play against Manchester City after he got hurt.

Tomorrow, the winner of the Treble will go across town to Old Trafford for the match.And Man Utd’s Under-21 team tied 1-1 with Fulham just two nights before the game.

A lot of fans, though, noticed that Mainoo wasn’t in the team for the game.

And this is after he started their last game on Tuesday, a 1-0 loss to Copenhagen in the Youth Champions League.

It was the 18-year-old’s first game since July, when he hobbled off with an ankle injury in a pre-season game against Real Madrid.He has been back in training for a few weeks now, and fans think he may finally be fully recovered as he looks for more chances to play for the first team.

Someone in support said, “No Mainoo.” “He’s about to cook City.”

Someone else said: “Mainoo not here meaning he could be involved in the Manchester derby.”

More people replied, “No Mainoo, haha City watch out.””Mainoo not there interesting…” asked a fourth.

The midfielder could get a chance because Casemiro is still nursing a small ankle injury and isn’t sure if he will be able to play.

Erik ten Hag has already put Lisandro Martinez, Tyrell Malacia, Luke Shaw, Aaron Wan-Bissaka, and Amad Diallo on the bench.