Chelsea have ducked questions about the ten match ban for Liverpool striker Luis Suarez.
Suarez was hit with the suspension for his biting incident involving Branislav Ivanovic on Sunday.
Chelsea manager Rafael Benitez said: "We know it was wrong and after the decision it's not something we can say too much (about).
"I'm here to play against Basle, concentrate on the Europa League and try to achieve our targets.
"We said we will not talk about that. We will talk about Basle."
A Chelsea spokesman added: "We consider it to be a matter for Liverpool and the FA. It could be a matter for an appeal and we'd rather not get involved."