Barcelona midfielder Ivan Rakitic says they'll go to Chelsea to win.
Barca go to Chelsea for the first-leg of their Champions League round of 16 clash on Tuesday night.
"We need to play the game without thinking about what will happen in Barcelona," said Rakitic.
"We need to play the best game that we can, try to win and score. The idea is to go out to win and after that we will see what happens.
"Messi is in good form, I have never seen him look after himself so much in the gym. He is giving his all in order to be in shape and that helps us a lot. We need him, and hopefully he will play all the games here at Barcelona before going to the World Cup."
Barcelona will look to enforce their style on the game and Rakitic sees Hazard as their main threat.
"We want to manage what happens on the pitch, we can improve a lot of things clearly," continued the Croat.
"We are up against the best team in England and in a special stadium. We want to win without thinking about the return leg, we are very motivated.
"(Hazard) Is the most important Chelsea player but there are also others and we will do our best to stop him. We have to be well prepared because it will also be an important game for him."