Ronnie O'Sullivan uses a 'robot' voice during an interview with ITV Sport in protest at being investigated by World Snooker over comments he made at January's Masters tournament.

At the Masters, which he won for a record seventh time, O'Sullivan publicly criticised the performance of a referee, and also swore during a press conference when talking to a photographer he claimed had been clicking away in his eye line, when he was down on a shot.

Pictures courtesy of ITV Sport.