"In the end we scored at a very important moment and it showed we always fight to the end of the match to change the result in our favour," he told the club's official website.
"You have to believe that from the first second to the last second of the game something can happen, and we scored in the third minute of additional time which allowed us to get the win. That's football. The most important thing was to win and we did that."
Chelsea return to action on Wednesday when they travel to Galatasaray in the last 16 of the Champions League.