Stoke City boss Mark Hughes was upset with West Ham United midfielder Alex Song after their 2-2 draw.
Hughes was critical of referee Chris Foy after the official did not punish a challenge from Song in the build-up to West Ham's first goal in their 2-2 draw at the Britannia Stadium.
Play was allowed to continue in the 60th minute following Song's rash-looking tackle on Mame Biram Diouf, and the Hammers were able to move the ball upfield with Stewart Downing, from whose cross Enner Valencia headed in to make it 2-1.
Hughes said after the Barclays Premier League contest: "It was a poor challenge by Song - he dived in two-footed, with both feet off the ground.
"Thankfully Diouf jumped out of the way, but the referee should have stopped the game there and then. It was a dangerous challenge.
"He might argue he tried to play advantage - well, we didn't gain one. We were at a disadvantage because they go up the other end and score their opening goal.
"It is a poor decision from the referee and he needs to do better than that."
Asked whether he thought play would have been stopped if it had been a Stoke player making the challenge, Hughes said: "I can't say that. But I can think it, maybe."
And then asked if he felt Song should have been red carded, Hughes added: "He didn't catch him, but there was the potential because he was out of control.
"Referees are told - for want of a better phrase - to stamp out those challenges, but he didn't do anything about it. I don't think he even talked to him after.
"He is one of senior referees and he has to better than that."
