Joe Allen and Bradley Johnson came together during the Championship match, with footage suggesting that Johnson bit Allen.
Both managers have played down the incident, with Joe Allen now stating that he was not bitten.
"It might look a certain way but he hasn't bit me," Allen told the 'BBC' after the game.
"He might have got a little bit of the shirt but nothing that I'm worried about and I don't think it should go any further that that."
Both players were booked for their part in the incident.
Sam Clucas had put Stoke in front before Etebo was shown a straight red card for a challenge on Richard Keogh.