Liverpool midfielder Lucas Leiva was hit with a yellow card at Vicarage Road after diving to attempt to win a penalty for his side in their crucial clash with Watford.
Referee Craig Pawson went immediately to his pocket as Lucas threw himself to the turf under the challenge of Tom Cleverley, booking the Brazilian on grounds of simulation.
The decision comes hot on the heels of a weekend of mass controversy, whereby dubious penalty decisions were given at both Old Trafford and the Riverside.
In Manchester United's clash with Swansea striker Marcus Rashford looked to throw himself over onrushing goalkeeper Lukasz Fabianski to win the decision, while in the north east Leroy Sane angled his body into Marten de Roon to decieve Kevin Friend into pointing to the spot.