Manchester United boss Jose Mourinho is keeping tabs on Mesut Ozil's situation at Arsenal.

The Sunday Express says Ozil has been told to justify his £350,000-a-week wages by new Gunners boss Unai Emery.

Gunners boss Unai Emery denied a rift with Ozil – who scored in a 2-1 win at Newcastle on Saturday – but says he wants to see more from his highest paid player, who still has another two-and-a-half years on his deal.

Mourinho was keeping tabs on him last season, before Ozil put pen to paper on his new contract, and is still interested if he becomes available.

United's executive vice-chairman Ed Woodward refused to splash the cash on a central defender and now faces the prospect of having to please his manager once again when the transfer window reopens in the New Year regarding Ozil.