Luis Suarez is facing a fresh investigation from the FA after he allegedly raised his middle finger towards Fulham fans on Monday night.
The Liverpool forward, 24, is already being probed over accusations that he racially abused Man Utd's Patrice Evra during the two sides' encounter in October.
During the match at Craven Cottage, which Fulham took 1-0 after the Reds were reduced to ten men, Suarez had a goal disallowed and a penalty claim rejected amid bating from the home crowd.
Liverpool manager Kenny Dalglish defended Suarez over the claims, telling reporters: "I haven't seen the pictures and I'm not taking anybody's word for it. If you show me the picture and what you're saying is true, then I've got a decision to make."
The FA will now decide whether to pursue the incident further.