Bad news for Mikel Arteta. The Arsenal manager will be without Mustafi for the final two matches.
The centre back has got a muscle injury. He will miss this weekend's game with Watford, their last one of the Premier League season, and then the FA Cup final versus Chelsea on 1st August.
Mustafi got injured in the FA Cup semi-final against Man City. A set back which make him miss the most important game of the season.
This season, Mustafi has played 27 games for Arsenal. He started 25 of them. Now he will have to stop.
Off the field, Mustafi's Arsenal contract expires in 2021. We do not know what will happen to him and whether he will stay after this summer. The defender has preferred not to talk about this while the season is still going on.