I used to play secret 'games' during matches: Ex-PL referee Dean
Ex-Premier League referee Mike Dean revealed he used to play secret "games" while refereeing top-flight matches, including seeing how long he could go before blowing his whistle. "I've done that a few times in the Premier League, before VAR, obviously," he said. Dean claimed he once managed to stay in the centre circle for about 15 minutes without leaving it.