The Blues had a disappointing start to the season under Andre Villas-Boas and lost the first leg of their last-16 tie against Napoli 3-1, but their fortunes in the knockout competitions were transformed after assistant Roberto Di Matteo was appointed interim manager.
The Czech goalkeeper felt that after managing to turn around the game against Napoli, he sensed the club were destined for glory in Europe.
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“The previous seven years when we’d been playing well and marching through the Premier League, coming close to or winning titles, we’d never had luck in the Champions League.
“Now everything was going wrong, the manager had left, and this time the luck all came in the Champions League. You could kind of feel something was happening.”
However, the Blues’ greatest triumphs were yet to come, and the 30-year-old added that the win over Barcelona in the semi-finals gave his side great belief they could go all the way.
“We had two really good games against Benfica, and if you go through against Barcelona you really have a chance," he added.
“We were down to ten men, 2-0 down, in the Camp Nou away. At that point not one single person in the world would have put money on Chelsea going through, but we did. That was the moment we thought we’d done the big one.
Cech then also revealed he had done his homework on Bayern penalties, but had left it right until the last minute, and did not see a specially prepared video until on the trip to Munich.
"This time the luck all came in the Champions League. You could kind of feel something was happening" - Petr Cech
“I’d seen all the Bayern penalties since 2007, which took me two hours to go through. I had the DVD for four or five days, but was being kind of lazy. I thought it wouldn’t go to penalties, but the flight took two hours so for the whole flight I watched it,” he explained.
“Robben always shoots different ways - there’s no pattern in his penalties - so I didn’t know what to do with him. Half he shoots on the right, half on the left. There’s no pattern whatsoever. But when you’re tired, players choose power rather than technique.
"I thought he’d smash it somewhere near the corner and hope it would go through. He’s left footed, I’m left-footed and I thought that if it was me I’d go across goal to the right.
“In the last ten minutes I was praying for them [penalties]. The way the game went they had really good chances and we were getting tired.
“I’d have been happy for the game to end then rather than going to 120 minutes.”