Chelsea striker Pierre Emerick Aubameyang has been in touch with former team-mates at Barcelona telling them he is keen to return.
Aubameyang has endured a torrid time at Stamford Bridge but is not Barca's priority this summer.
Chelsea, who have put a deal in place for yet another winger - Benfica's 18-year-old Diego Moreira - on a free this summer, are continuing to hold discussions over more additions but will inevitably let Aubameyang go.
They have held talks over popular Barcelona midfielder Gavi, who will also become a free agent this summer, if his contract isn't registered and have taken soundings over Rafael Leao's situation at AC Milan in the past week.