Everton boss Roberto Martinez was critical of referee Lee Mason after the Toffees' home loss to Stoke and hinted he felt the official should be dropped.
Martinez hit out at Mason's decisions to only yellow-card Jonathan Walters for pulling back Leighton Baines in the first half and then award a penalty to the visitors moments later, having adjudged James McCarthy to have fouled Bojan Krkic.
Mason saw the red card he showed Aston Villa's Gabriel Agbonlahor last Saturday subsequently rescinded this week.
Martinez said: "It was very disappointing.
"It was for everyone to see and maybe the PGMOL (Professional Game Match Officials Limited, the referees' body) need to make a decision (about dropping Mason)."
Stoke boss Mark Hughes maintained: "It's a clear penalty."