Chelsea returned to form on Monday with a 3-0 win against West Brom having lost their last two games against Bournemouth and Watford in the Premier League.
Eden Hazard scored twice in the win at Stamford Bridge and says Chelsea are now ready to face Barcelona in the Champions League.
"We have responded and we've done it in front of our fans," the Belgian said. "It's always good to play a game like this. Now we have Hull and then Barcelona.
"We're ready. It's not easy to lose two games, but now we're back. We are Chelsea, the champions and we have to give everything."
Chelsea host Barça in the first leg of their round-of-16 tie next Tuesday in London.