Piers Francis has been cited by World Rugby for a high tackle in England's 45-7 win over the United States on Thursday.
The centre's hit on Will Hooley just seven seconds into the Rugby World Cup match left the USA full-back with concussion.
Referee Nic Berry opted not to review the incident at the time and England went on to claim a second successive bonus-point triumph in Pool C.
Francis is the fourth player to be cited at the World Cup and will attend a hearing in Tokyo to determine if he will punished.
Australia's Reece Hodge and Samoa's Rey Lee-Lo received three-match bans earlier this week after being cited for high tackles.