Former Atletico Madrid defender Felipe Luis is set to return to the club.
Luis, who left the Spanish side for Chelsea in 2014, will be returning after both clubs agreed a fee of £16 million.
Chelsea were determined to recoup the money they spent to get him, and will now be chasing highly-rated Augsburg wing-back Abdul Baba Rahman.
Felipe Luis made just 15 appearances for the Blues last season, and his exit is not a surprise.
Club manager Jose Mourinho is happy with his current squad and has been signing players on a replace-only basis this summer, with Asmir Begovic coming in to replace Petr Cech and Radamel Falcao to take Didier Drogba’s place.