The Blues frustrated the Spanish giants on their own patch and restricted them to just two clear cut chances, both coming in the closing stages.
It was clear from the start that the Blues' aim was to make sure they were still in the tie when they went back to Stamford Bridge for the return leg in a week's time.
But despite Barca failing to find the net at Camp Nou for the first time this season, the Cameroon international is confident the Catalans can score in West London.
"We still have our chances, it is still 50-50. I hope they will not play like that," he exclusively told skysports.com.
"They came here to sit in front their defence. They came not to concede. They have obtained that.
"We will try and score the goal which will take us to the final of the Champions League.
Confident"We are still confident, the good thing is that the second game will be open. The two clubs will try to play football not only one, like tonight.
"We will be there to play our football."
Meanwhile Barca midfielder Yaya Toure bemoaned referee Wolfgang Stark's performance after he failed to award the hosts a penalty when it appeared Thierry Henry had been dragged back in the area by Blues defender Jose Bosingwa.
"There are no excuses for that referee," he said.
"I think there was a clear penalty on Henry. He was always stopping play even though we had the advantage to continue out attacks.
"Chelsea were not interested to play, they were committing little fouls to stop our movement.
"We still have the second leg but they are a difficult team on their own ground. But we can win anywhere in the world and we will go for a win."