England wing Henry Arundell will face a disciplinary hearing on Tuesday after his red card in the 31-20 Six Nations defeat by Scotland.
Arundell was sin-binned for not releasing his opponent early on in the match and then received a second yellow for taking out Kyle Steyn in the air.
The Bath wing received an automatic 20-minute red card that meant his team-mates played with 14 men for a total of 30 minutes.
The 23-year-old has scored four tries in two games - a hat-trick against Wales and England's opening try at Murrayfield.
Arundell's decision-making was criticised by former England scrum-half Matt Dawson in his column for BBC Sport.
"Henry is a 23-year-old and will, of course, bounce back, but it was reckless and a poor decision," said Dawson.
"What if that had been a championship decider or a World Cup knockout game? You have to make good decisions under pressure."
England head coach Steve Borthwick is already without injured wing Immanuel Feyi-Waboso but has options for Saturday's match against Ireland should Arundell be banned.
Borthwick could promote Elliot Daly or Cadan Murley into his starting XV at Allianz Stadium.
Alternatively, he could move Tommy Freeman back to the wing and recall Ollie Lawrence at outside centre.
England's humbling defeat at Murrayfield - which snapped a 12-match winning streak - was a blow to their hopes of a first Six Nations title since 2020. They are third in the standings with trips away to play Italy and France still to come.