Newcastle United have contacted the Premier League to question recent refereeing decisions, according to the BBC.
The relegation battlers have been punished by debatable calls in their last three matches.
This includes a stunning decision to award a penalty for Ryan Fraser in Sunday's 4-0 loss to Manchester City.
Toon great Alan Shearer slammed the decision and Mike Riley, general manager of the Professional Game Match Officials Limited, should "take responsibility" for recent mistakes.
The Magpies need all the help they can get at the moment.
Eddie Howe's side have won just once this season and currently sit three points from safety.
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