English Premier League defending champions Diego Costa has excluded striker Diego Costa from the squad that will compete in the Group Stage of the UEFA Champions League.

Chelsea, on Monday named a 25-man squad, without Costa, who has tried to exit the English side for his boyhood club Atletico Madrid.  

The 28-year-old has been frozen out by Chelsea manager, Antonio Conte after a misunderstanding between both parties.

Also read: Wenger Considered Resigning

Atletico, who were drawn in Champions League Group C alongside Chelsea, are banned from signing new players until January.

Despite being named in Chelsea's Premier League squad, Costa has not played in any of their league games to date, his place has been taken by 58 million ($75.1 million, 63.1 million euros) record signing Alvaro Morata.

Chelsea will also face Roma and Azerbaijani newcomers Qarabag in their group.

ALSO WATCH: Meet Azubuike Okechukwu, Turkish 1.Lig Team of The Year Star