Liverpool manager Brendan Rodgers has confirmed the club will review Luis Suarez's apparent bite on Chelsea defender Branislav Ivanovic.
The two players came together in the second half of the 2-2 draw on Sunday, with the Uruguay international grabbing the Serbian's arm before appearing to bite him.
The incident was not spotted by the match officials and Rodgers refused to comment on it but said the club would investigate the alleged bite.
"We'll review it and look at the video of it and make a comment then," he told Sky Sports.
"I've only just come in and seen the opportunities from a football perspective. Until you review it you cannot speak totally of it."
Rodgers looked to highlight his side's excellent second-half performance, twice coming from behind against Chelsea, and felt the hosts had been on the wrong end of several decisions.
"There were other incidents – the elbow on (Jamie) Carragher by (Fernando) Torres, right on his cheekbone, but until we review (the Suarez incident) I can't comment. I've no thoughts on it," he said.
"I've just come in on the back of a terrific second-half performance, where we had to come back."
Chelsea interim manager Rafael Benitez, making his return to Anfield, was denied a valuable win in the race for the top four following Suarez's late equaliser.
Like Rodgers, the Spaniard had not seen the incident and was unable to comment on whether Suarez should even have been on the pitch to score, but was frustrated by the amount of injury time added on.
"I didn't see anything," Benitez said. "I concentrated on the game.
"It is difficult to explain – minimum six minutes, six minutes 45 (seconds) is difficult. We had the game nearly won. It was a surprise – why six minutes? We don't know – the rules aren't clear."