Jose Mourinho was arrested and cautioned by police over a row about his dog, it has been confirmed.

A spokesman for Mourinho said: "The incident occurred because of a misunderstanding over documents required for veterinary regulations.

"Mr Mourinho would like to make it clear that his pet dog was bought in England from a reputable breeder and has had all its necessary inoculations.

"Full co-operation will be given over any animal health issues."

Mourinho, 44, was attending Chelsea's player-of-the-year awards when he was called to his home on Tuesday, according to reports.

The Portuguese manager of the Stamford Bridge club is believed to have refused to allow the police to take the Yorkshire terrier.