Aston Villa defender Zat Knight has accused Birmingham's Daniel De Ridder of attempting to 'cheat the referee' in Sunday's Second City derby.
Villa won the St Andrews encounter 2-1, but they survived a penalty scare when De Ridder went down in the 18-yard area under the challenge of Martin Laursen.
De Ridder was booked for diving by referee Steve Bennett as a result of the incident.
And Knight believes the Birmingham midfielder made the most of the penalty claim.
"There was a minimal touch and he made the most of it," Knight told Sky Sports News.
"Obviously he has tried to cheat the referee. He is a big lad and he should have stayed on his feet."
Knight also insists that Liam Ridgewell - who left Villa for Birmingham in August - will receive no compassion from his former team-mates after gving them the lead with a 11th minute own goal.
"No, not here," added Knight when asked if he sympathised with Ridgewell.
"Obviously he gets a bit of stick being an ex-Villa player. We got the three points and that's what we are happy about."