Chelsea boss Jose Mourinho was arrested and cautioned after arguing with police about his dog, according to reports.
Newspaper reports claim police went to his London home to help put the dog into quarantine, fearing it had been taken abroad and back without jabs.
Scotland Yard confirmed the dog was to be seized under the Animal Health Act of 1981 and Rabies Order Act of 1974.
"A man was arrested on suspicion of obstructing police. He was later cautioned," said a police spokesman.
Mourinho, 44, was attending Chelsea's player-of-the-year awards when he was called to his home, the Sun newspaper reports.
Reports say he is being released with a warning.