Tony Pulis could face an FA probe after blasting fourth official Lee Probert on Sunday.
The Stoke City boss accused Probert of having a hand in Rory Delap's sending-off during his team's 2-0 FA Cup win over Crawley Town.
"We had a fourth official today who I think has got Rory sent off.
"The referee, I think, gave a throw-in so Lee Probert is the one [that got Delap sent off]," he said.
The Potters boss was fined £10,000 by the FA in November after criticising Probert for Stoke's Carling Cup defeat to Liverpool.