Stoke City chairman Peter Coates believes they're not getting fair treatment from Premiership refs.

Reflecting on Andy Wilkinson getting a red card against Manchester United on Boxing Day, Coates claimed that Cristiano Ronaldo should have been punished by referee Chris Foy for flicking a boot at the defender, as should Wayne Rooney for throwing an elbow at Abdoulaye Faye.

Coates said: "I'm not excusing Wilkinson but he was aggravated by Ronaldo just before and I think everyone saw that but the referee did nothing.

"Then Rooney puts in a strong elbow right in front of the linesman, and again, nothing.

"Big clubs get favoured treatment from referees but it's happened for a number of years.

"We complain through the official channels and we'll continue to complain."