Mesut Ozil was expected to return to training today after his controversial absence from Arsenal’s 3-1 win over West Ham.

The Gunners secured Unai Emery’s first Premier League victory as head coach but the result was somewhat overshadowed by rumours of a training-ground bust-up after the midfielder learned he would not be starting Saturday’s game.

Emery denied suggestions the 29-year-old had refused to take his place on the bench and instead claimed he was with the team before departing due to illness, adding: “There is no problem with the player. Speak with the doctor. He can explain better.”

It is understood the first-team squad had yesterday off but were due to resume training this morning ahead of Sunday’s trip to Cardiff.

Ozil was expected to be present at London Colney, although it was unclear whether he would be confined to indoor gym work rather than taking part in a full session. The severity of his condition is unlikely to make him a doubt to face Neil Warnock’s side.

Emery has taken a firm line with Ozil, playing him away from his preferred position against Manchester City before substituting him against Chelsea with the scores level at 2-2.

Ozil signed a new contract worth £350,000-a-week in January and Emery wants the former Germany star to prove his worth, urging him earlier this month to show greater intensity in matches.

Ozil quit international football this summer following fierce criticism of his performances and loyalty to Germany. He subsequently accused the German Football Federation of “racism and disrespect.”