Jack Grealish was visibly emotional after injury forced him off against Luton

Jack Grealish was visibly upset after suffering yet another injury setback against Luton Town.

Grealish has been plagued by injuries this season and was gutted to come off early on against Copenhagen a few weeks back.

He found himself back in the starting XI in the FA Cup tie against Luton as Erling Haaland bagged a hat-trick from a trio of Kevin De Bruyne assists.

But before half-time, the former Aston Villa skipper was forced off with an injury and replaced by Jeremy Doku.

Image: ITV

Grealish was absolutely devastated and had to be consoled by staff and players on the bench.

He then held his coat above his head in an attempt to hide his emotions.

Grealish had been suffering from a groin problem of late and it remains to be seen whether it is a recurrence of the same issue.

Pep Guardiola had hailed the £100 million man in his pre-Luton press conference but also called for him to show why he deserves to play.

Image: Getty

Guardiola said: "I said from day one, we need him. He has a special quality for our team. But it depends on him. Hopefully he can do a good last three months.

"I cannot give players three or four games to get their rhythm. They have to find the rhythm to play for 20 minutes or 90.

"At a high level, the team don't wait to be fit. You cannot give someone three or four games to be fit. What about the 10 who don't play? They deserve not to play?

"You have to see the training sessions and all the small details. The players don't have to convince me. They have to convince themselves that they deserve to play."