The 23-year-old Portuguese, who is at the World Cup with his country, is wanted by the Stamford Bridge club.
Amid that praise, Chelsea star Reece James name dropped Leao during a fan Q&A on Twitter, stating to a question about his toughest opponents: "3 hardest players I've ever played against are all left wingers! Vinicius Jr, Leao and Mane!"
Leao then replied to the comment, saying "My bro" along with a handshake emoji.
Such an interaction is likely to continue the speculation about his future.