"Against Man United we didn't really make the most of Fernando, he didn't play against Everton and he came off injured at half-time against Arsenal. He hasn't really played against them," said Liverpool's vice-captain.
"I am sure they all watch Match of the Day and see each week what damage he has been causing and they will be well aware of him.
"Of course, it's different in a game. He is going to be facing top defenders and they will relish showing what they can do, just as he will relish showing them.
"He's on fire at the moment. He is the stand-out striker in European football right now and looks like he has got the lot.
"The header he scored today, you probably wouldn't expect off a pacey striker. But I was stood right behind him and it was some header.
"It has been a long time since Robbie Fowler got 20 league goals and for Fernando to be the first player since then to do it shows he is a special player."
