Arsenal manager Unai Emery has told Mesut Ozil that he needs to work harder in order to have a future at the club, according to The Mirror.

What's the word?

The German World Cup winner became the Gunners' highest-paid player in January, but his importance to the team seems to be dwindling.

Since Emery became Arsene Wenger's successor, the style of Arsenal's game has changed, or at least is in the process of doing so.

The Spaniard prefers a high-pressing energetic style, which has not yet been grasped by Ozil.

The midfielder was substituted with 20 minutes on the clock of the Gunners' 3-2 defeat to Chelsea and was not even included in the team that overcame West Ham United 3-1 on Saturday.

According to The Mirror, Emery has told Ozil that he needs to work much harder if he wants to keep his place in the team.

It is believed that the manager has no problems in dropping high-profile stars if they do not adapt.

Should Arsenal sell him?

Tactically, Ozil is not the right player for Emery's style of play as the coach likes working with a high line.

The midfielder - valued at £40.5m by Transfermarkt - has not shown the desire or energy in the past to track back when needed, so perhaps the intensity of what the manager is trying to create is too much.

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Selling a star player is never ideal for any club, but in this instance, it is not the first time that Ozil has been criticised for failing to be a leader or influence a match.

If the former Real Madrid player cannot adapt his game, then there is no need for him in the team and the Gunners should look to sell in their bid to become great again.