Liverpool manager Brendan Rodgers claims the severity of Luis Suarez's 10-match ban has left them "bitterly disappointed".
The Uruguay striker has been handed a lengthy suspension for biting Chelsea's Branislav Ivanovic.
Liverpool have until midday on Friday to appeal and will make their decision after receipt of the disciplinary panel's report, which has to arrive with the club before 6pm on Thursday.
"It is the severity of the ban that has hurt most," said the Red boss.
"That is something we are bitterly disappointed with - not so much the ban because everyone has seen it and Luis was very open and honest to know it was wrong."