Maurizio Sarri banned from his usual half-time ritual by Roman Abramovich

Sarri signed in at Chelsea this week [Photo: Courtesy]

Maurizio Sarri has been ordered to change his habits by Roman Abramovich after signing on to become the new Chelsea boss.

The 59-year-old Italian - who replaces Antonio Conte at Stamford Bridge - has been ordered to wear a suit on matchdays rather than his usual tracksuit approach, and has also been told to cut out his cheeky half-time cigarettes.