Diego Costa was subject to a huge offer from China last month, which led to his falling out with Antonio Conte.
Chinese Super League club Tianjin Quanjin, managed by World Cup and Ballon D'Or winner Fabio Cannavaro, bid £90million for the Spain international, and offered him £85million in wages over a three-year contract.
Chelsea rejected the offer, which would have made Costa the second most expensive player in the world behind Paul Pogba.
SFR Sport claim Costa was interested in the move, which led to his dispute with club bosses at Stamford Bridge.