Chelsea are reportedly keen to sign Augsburg left-back Baba Rahman as a replacement for Filipe Luis.
Reports have claimed that Luis could return to Atletico Madrid this summer, just one season after leaving the Spanish side for Chelsea.
After Luis failed to cement a regular first-team spot at Stamford Bridge, the Blues have switched their attention to Ghana international Rahman.
According to The Telegraph, the Premier League champions are pondering a £10m bid for the 20-year-old, who has been monitored by Arsenal and Manchester City over the past two years.
Atletico, Juventus, Bayern Munich, AC Milan, Inter Milan and Roma are also said to have taken an interest in the full-back.