Swansea boss Paul Clement has revealed he called referees' chief Mike Riley to show support for ref Anthony Taylor.
Taylor awarded a penalty against the Swans in their 3-2 victory over Burnley despite the offence being committed by Burnley's Wales striker Sam Vokes.
Clement feels it is impossible to blame officials for mistakes while they are unable to utilise video technology.
"I think they've got a thankless task sometimes because the thing is, not all players are honest," he said.
The International Football Association Board discussed whether to introduce video technology last week.