The former Arsenal man knows just how difficult it will be to stop Suarez, who has scored 22 goals in all competitions this season and is the Premier League's top marksman.
He told the club website: "You can't give him too much space. All he needs is half a yard to get a shot off or to cause a bit of damage.
"He's a nightmare for a defender. He's an amazing footballer. He's a 100 per cent every game and has amazing ability.
"He's not the only one we have to keep an eye on with players around him like (Steven) Gerrard and (Daniel) Sturridge, who are equally dangerous. Everyone will have to be on the top of their game."