Manchester United midfielder Bastian Schweinsteiger has been charged with violent conduct by the Football Association.
Schweinsteiger appeared to elbow, whether deliberately or unintentionally, West Ham United defender Winston Reid in Saturday's 0-0 draw.
Reid and the Germany captain challenged in the West Ham penalty area as United looked to deliver a set piece from a dangerous position, although as with many of their chances, it was wasted.
Schweinsteiger could face a three-match suspension if found guilty by the FA, who have given the 31-year-old until December 12 to respond to the charge.
Schweinsteiger charged by FA over elbow on Winston Reid
The midfielder's current focus is on Man United's next fixture, a vital one. Schweinsteiger traveled back to his home country Germany before talking in a news conference alongside manager Louis van Gaal ahead of a must-win clash against Bundesliga side Vfl Wolfsburg.
The Red Devils need a victory in Germany to progress to the knockout stages of the Champions League, of which Louis van Gaal called 'very important for the club'.
His side sit in second position in Group B with one game to go. Wolfsburg are top and need just a draw to secure first position and, therefore, an easier draw in the latter stages. United, meanwhile, need to better PSV Eindhoven's result against CSKA Moscow to ensure they are part of the knockout stages.
United face busy festive period and could be without main midfielder for three games
PSV are likely to beat CSKA at home in Eindhoven and United, therefore, need to match their result and win at Wolfsburg, who have lost just one of their last 30 home league games.
However, that one loss did come last weekend against high-flying Borussia Dortmund, of whom are not in the Champions League this season but were in the final in 2012.
Schweinsteiger will be available for the Wolfsburg but should he be found guilty of misconduct against Winston Reid, he will be reprimanded and would miss three English domestic league or cup games.
United face AFC Bournemouth, Norwich City, and Stoke City after the Wolfsburg game, of which Schweinsteiger is likely to miss.
Ander Herrera is currently injured as well as Morgan Schneiderlin, leaving United's midfield rather bare ahead of a very busy festive period.
The Reds will face Sheffield United in January in the FA Cup Third Round, which was drawn on Monday evening.