The Blues frustrated the Spanish giants on their own patch with a resolute defensive display.
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.
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 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.
"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."