Chelsea boss Roberto Di Matteo admitted on Saturday that he could join forces with Bayern Munich in an attempt to get six yellow cards overturned for the Champions League final.
Ramires, Branislav Ivanovic and Raul Meireles will all miss the May 19 final in Munich after being booked in Chelsea's semi-final second leg at Barcelona.
Bayern, meanwhile, lost Holger Badstuber, David Alaba and Luiz Gustavo after their own semi triumph over Real Madrid.
Asked if Chelsea would consider a joint bid with Bayern to get UEFA to change their minds over the bans, Di Matteo said: "If there's any possibility, we would consider it, of course. But I think it would prove very difficult."
Even if both clubs failed in any bid to overturn those bans, Di Matteo called for a rule change next season so an amnesty is introduced after the quarter-final stage.
That would bring the Champions League into line with the World Cup and European Championships.