Chelsea keeper Cech unhappy with Arsenal playoff prospect
Cech feels it would be harsh on the Blues if they were forced to take in another game and is determined to help ensure that is not the case.
He told Sky Sports: "I don't really understand it. I know this is the rule, but we beat them twice over the course of the season - home and away.
"Getting to a play-off, it would be really extraordinary but the rules are like that. Hopefully it won't happen."