Chelsea goalkeeper Petr Cech admits there's big Blues links with their Champions League rivals.

Cech joked that the club have a link with all of their opponents in this season's group stage.

"We have our assistant coach going to Valencia [as a scout] and he will give the information the boss wants," he said. "Our group is very interesting because we bought a goalkeeper from Genk [Thibaud Courtois], we bought a player from Valencia and we sent [Michael] Ballack [back] to Leverkusen. It's a funny kind of draw."