Tianjin Quanjian are hoping to sign Diego Costa from Chelsea, when the Chinese transfer window re-opens on June 19, according to Sky sources.
The Chinese Super League club tried to sign striker during January window, but a move did not materialise.
Tianjin are reportedly ready to make Costa the best-paid player in the world, with a contract worth £650,000 a week after tax.
Costa’s £150,000-a-week Chelsea contract runs out in the summer of 2019.
Tianjin are seventh in the Chinese Super League table after five games.
The Chinese Super League season starts in March and ends in November and the mid-season transfer window is open from June 19 to July 14.