Stoke have lost an appeal against Jonathan Walters' red card in the 1-1 draw with Norwich on Saturday, the English Football Association has announced.
Walters was dismissed in the 78th minute of the Barclays Premier League contest at Carrow Road for a foul on Canaries midfielder Alexander Tettey.
The Potters forward will now serve a three-match suspension.
A statement on the FA's official website on Tuesday afternoon said: "Following an Independent Regulatory Commission hearing today, a claim of wrongful dismissal concerning Stoke City's Jonathan Walters was rejected.
"Walters was dismissed for serious foul play during the game against Norwich City on 8 March 2014.
"His three-match suspension will commence with immediate effect."
Walters' sending off came five minutes after he had netted Stoke's equaliser from the penalty spot.
Following the match, Potters boss Mark Hughes expressed his unhappiness at referee Andre Marriner's decision to dismiss Walters for his high challenge on Tettey.
"I've looked at the incident and there is contact and Jon has accepted that he caught him," Hughes said.
"But both players had their feet high and I think the punishment was too harsh for the crime. Both players just intended to win the ball and Jon just caught him with his follow through."
Stoke already have midfielder Charlie Adam serving a three-game ban, which began with the Norwich fixture, after he was retrospectively punished following an incident in their previous outing, a 1-0 home win over Arsenal - in which Walters also scored a penalty.
Adam was charged with violent conduct after he appeared to stand on the leg of Gunners striker Olivier Giroud.
Referee Mike Jones did not see the incident during the match but it was picked up on television footage and, although the Potters contested the FA's decision to punish the player, an independent panel upheld the charge.
Following the FA's announcement about Walters, Stoke issued their own statement on Tuesday which said: "The club gave careful consideration to whether or not to appeal Jon's sending-off but we felt compelled to do so in the interest of consistency after three incidents of a more serious nature in the Premier League last weekend failed to result in red cards.
"We are disappointed with the lack of consistency that this decision seemingly supports."