Sheffield United winger Keith Gillespie has been charged with violent conduct by the Football Association.
The incident is in relation to a second confrontation with Reading midfielder Stephen Hunt during United's 3-1 defeat at the Madejski Stadium on Saturday.
Gillespie had already been dismissed moments earlier by referee Mark Halsey for elbowing Hunt just 12 seconds after his arrival as a substitute and then, as the former Northern Ireland winger made his way off the pitch, he then appeared to hit Hunt in the face.
Under the FA's fast-track system, Gillespie has until Wednesday to respond to the charge, with a hearing scheduled for next Tuesday.
Gillespie already faces a three-match suspension for the initial incident, and misses matches at home to Fulham next Tuesday, at Blackburn on February 3 and the game with Spurs at Bramall Lane a week later.
The 31-year-old could yet be handed an extra three-game ban if he is found guilty by the FA's disciplinary panel.