His comments come as the FA prepare to look into Saturday's explosive match at West Bromwich. Arjen Robben became Chelsea's sixth player to be sent off this season as Jose Mourinho's side won 2-1 at The Hawthorns, with goals from Didier Drogba and Joe Cole, but the post-match headlines were not about a Chelsea victory.
What stunned onlookers instead were the antics of Mourinho and West Brom counterpart Bryan Robson, who exchanged insults on the sidelines, and of Drogba who was accused of diving to try and get an opponent sent off.
It played perfectly into the hands of those who want to portray Chelsea as the most hated team in Britain and leaves the club once again licking their wounds ahead of a crucial Champions League tie in Barcelona tomorrow.
Chelsea goalkeeper Cech admits that some lessons must be learned from the weekend ahead of the clash with the La Liga Champions.
He said: "The tie is not over yet because we have enough quality to change the record of English teams there and win. But there is a big 'if'. And that is if we can keep 11 players on the field. If we can do that there will be a big chance to go through. There is not even a small difference between the clubs, both have quality teams. But it's difficult to play them when you are down to 10 men.
"I think we are at half-time and we have enough quality to change the result. I'm pretty confident we can get a result in the Nou Camp. Last season we played there and we were 1-0 up, but there was another sending-off and we lost the game. But I think that we have already showed that with 11 men we can win there. That is the key."
Meanwhile, Frank Lampard says he expects to be fit for tomorrow's match having missed the game at The Hawthorns with a hamstring injury.
He said: "It's feeling good. It was a tweak, it wasn't a tear or anything bad. I've had intensive treatment and I've done some light running. I'm looking forward to being fully fit for the game."
Lampard is well aware of the task facing Chelsea after they lost the home leg 2-1 because it means they have to score twice in the Nou Camp and keep the likes of Ronaldinho, Samuel Eto'o and Lionel Messi quiet.
"They are a great side, we knew that from when we played them last year. The front three they have are very, very special. It's one of the main problems to keep them quiet before you think about imposing your own game on them."
There's little doubt that Chelsea have the ability to do something special at the Nou Camp but right now they aren't winning many friends with the way they go about their business.
Saturday's victory at West Brom all but sealed the title for a second season in a row but Blues are rapidly becoming the team that opposition fans love to hate. The cynical Mourinho, who stormed out afterwards without shaking hands and without attending a press conference, was certainly not very happy with events at The Hawthorns but Chelsea's tactics did not leave opposing supporters impressed, either.
They were far from enamoured by Chelsea's gamesmanship at the start of the second half when they left Albion kicking their heels waiting for the restart - and matters came to a head in an ill-tempered affair with Robben's second half red-card for a rash challenge on Jonathan Greening which left Mourinho childishly applauding the referee for his decision.
Well-taken goals from Drogba and Cole sealed victory, although Kanu scored a late consolation for the hosts, but you sense a similar display against Barcelona will signal the end of their Champions League hopes.
Mourinho exited early and again left himself open to accusations of being a graceless winner. And even his players declined to speak once John Terry had made a brief comment on television.
The England defender felt Robben had been harshly dealt with. He said: "We are not happy with the latest sending off, Arjen. The referee said it was a two-footed tackle but he never touched the player."
It was Drobga's diving that really upset West Brom rather than Robben's challenge and Robson made back-page headlines with his accusations.
Albion's seasoned professional, Steve Watson, who has been playing for close to 20 years now, says it is a side of the game he wants to see stamped out.
Watson said: "I have been around and I am pretty well schooled. But I don't like that side of the game. You would like to have it stamped out."
: There have been five sendings off in Chelsea's last 11 games (in all competitions).
: Chelsea have conceded in each of their last six away games (in all competitions).