The Football Association may choose to take action against Rio Ferdinand after the Manchester United defender was involved in an incident with Chelsea striker Fernando Torres during Sunday's FA Cup quarter-final.
Ferdinand appeared to trip Torres over in the 86th minute before pushing him in the back as the striker got back up to his feet.
The FA will study the footage before making a final decision but Blues boss Rafa Benitez refused to comment on the altercation.
"I haven't seen the replay - you can see the replay," he said when asked for his response. "You have an advantage and can do it now."
He added: "I don't talk about things that happen on the pitch."
Benitez confirmed that he had spoken to Torres about the incident but again refused to go into any details.
United scored two goals in the opening 11 minutes, however, they saw their lead slip as Chelsea fought back to force a replay in the second half.
"We gave them the impetus to claw their way back into the game. We played some great football at times but were so careless at times," Ferdinand said. "If you are careless you are going to get punished. That was the case.
"But we are still in the cup. Wembley is waiting for one of us to go through and hopefully it is us. We go to Stamford Bridge for the replay with confidence. We have the tools. We have been there before this season and done well and with the squad we have we don't fear going anywhere."