Referees chief Mike Riley has apologised to West Brom head coach Steve Clarke for the controversial penalty awarded against his side in the 2-2 draw at Chelsea earlier this month.
Riley telephoned Clarke to say sorry for Andre Marriner's decision to award a penalty for a collision between Steven Reid and Chelsea midfielder Ramires in stoppage time at Stamford Bridge.
Eden Hazard converted the penalty to extend manager Jose Mourinho's run of home Premier League matches without defeat to 66.
Clarke told the club website: "We've had a phone call from Mike Riley to apologise. It doesn't get us any more points but it's nice of Mike to phone.
"If he's apologising, he obviously feels it was the wrong decision. We have to put it behind us now and move forward."