Diego Costa has not been included in Chelsea's Champions League squad.

The 28-year-old striker has not played for the Blues this season, and spent much of August AWOL in his native Brazil.

Costa said he wanted to rejoin Atletico Madrid, and that Chelsea were treating like "a criminal" by demanding an "impossible fee" for him.

The Spain international was named in Chelsea's Premier League squad after the transfer window closed, but his future at the club remains uncertain.