The Liverpool striker Luis Suárez could face a misconduct charge after appearing to make an offensive gesture towards Fulham fans at the end of his team's 1-0 defeat here on Monday night.

Suárez, who has been charged by the Football Association over allegations that he racially abused Manchester United's Patrice Evra in October, which he denies, was pictured apparently responding to supporters as he walked towards the tunnel after the match.

The Uruguay international was subjected to chants of "cheat" after the referee, Kevin Friend, turned down a penalty appeal when he went over after a challenge by Brede Hangeland in the second half. The FA will wait for the official's match report before deciding whether to act.

Kenny Dalglish, the Liverpool manager, admitted he could be forced to talk to Suárez about his conduct following the latest controversy but angrily hit back over the fans' abuse. "I haven't seen the picture and I'm not taking anybody's word for it," said Dalglish. "If you show me the picture and I'm convinced that what you're saying is true, then I've got a decision to make. But until you have proved it is true to me, I won't comment."

In response to Fulham supporters branding Suárez a "cheat", Dalglish said: "That's scandalous. I would like to see you write that in the paper because you would be in a bit of trouble as well. You write what you want to write. At the end of the day, we will look after Luis the best we can and I think it is about time he got a wee bit of protection from some people."

Ironically, Fulham's Chris Baird was charged by the FA with using an abusive gesture towards a match official in the corresponding fixture last season after he showed the referee Lee Mason a V-sign. The defender was given a two-match ban. Wayne Rooney was famously banned for two games last season for swearing into a television camera after celebrating a goal at West Ham United.

Liverpool may appeal against Jay Spearing's red card after the midfielder was sent off for a two-footed challenge on Moussa Dembélé after 72 minutes. The match was goalless at the time, with Clint Dempsey's winner coming in the 85th minute.