On a dramatic night at Stamford Bridge, goals from Andre Schurrle and Demba Ba saw Chelsea emerge 2-0 winners against Paris Saint-Germain.
The result ensured the Premier League giants progressed on away goals after overturning a two-goal deficit.
And the Chelsea captain said Mourinho's tactical preparation was the catalyst behind the club's successful night.
"We always gave ourselves a chance. We worked on different scenarios all week,' the 33-year-old veteran said.
"We had a game plan. Once again we got it right.
"We showed great character and a will to win. It was a big result. This competition means a lot to us.
"The manager has had a lot of success and so have we as a club."
"When we got to the Champions League final and won it is the best feeling ever," he said.
"We have big players and we gave a big performance. That’s what we live for."
