Zabaleta says there will be no thoughts of going to Old Trafford hoping to nick a point.
He said: "Always when you win games like we did against Villarreal before the derby it's great for the group and the squad.
"Everyone will now be talking about the derby and we have to focus on United, be positive and believe we can beat United.
"Of course we believe we can go there and win. We know we have a great team, the derbies are special games and we are going to Old Trafford to win this game.
"We have the team for that and we are positive. We are two points ahead of United in the Premier League and we have the chance to make it a bigger difference so it's going to be a huge game."