But under new boss Kenny Dalglish the Portugal international has found his best form, opening his account in the Merseyside derby which signalled a run of five goals in six matches.
"Raul has always had the ability he has shown recently," said Dalglish. "Maybe he's settled down a little bit and is more comfortable and confident because he is playing well but there's been nothing drastic [tactically] for any of the players really.
"It is fantastic to see Raul doing so well. He has always been a talented footballer, he's always had what we are seeing now but it's been trying to get it out and it is coming out now and he's scoring goals."