Michael Dawson has been charged with improper conduct by the Football Association and could face an increased ban as Tottenham bid to recover from their worst ever start to a league season.
Dawson was dismissed in stoppage-time of the defeat to Stoke on Sunday and the charge relates to how he reacted when Lee Mason showed the red card.
The 24-year-old centre-back, who received a three-match ban for his tackle on Mamady Sidibe, has until 6pm on Wednesday to answer the charges before a regulatory commission hears the case the following day.
The FA are likely to add another game to his suspension, while other options include handing out a further two matches or keep the ban as it is and issue a warning.
Head coach Juande Ramos needs as many options as possible due to Ledley King being unable to play twice in a week at the moment, leading him to be rested at Stoke.
Dawson and King are in the squad to face Udinese in the UEFA Cup on Thursday but more important is the clash against Bolton at White Hart Lane on Sunday when Spurs look for their first league win of the season.
Ramos' decision not to use King backfired dramatically at the Britannia Stadium as Dawson's dismissal ruled him out for at least three games. If King plays in Italy he will not play against Bolton.
Returning to the UEFA Cup will be a welcome relief for Ramos, who won the trophy in consecutive seasons at Sevilla.
"The mood in the squad is okay, but everyone knows what the situation is and nobody expected to be in this position," said midfielder Luka Modric. "The next league game against Bolton could be the turning point in our season if we win because things will look so much better.
"We believe in ourselves and know we can win games because we have enough quality to do so, even though we haven't shown it yet."
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