Diego Costa's future at Chelsea has been thrown into question after reports that the Spain international has been 'unsettled' by a big-money offer from the Chinese Super League.
Costa, 28, was strongly linked with a move away from Stamford Bridge in the summer, but ultimately remained in London and has scored 14 Premier League goals to fire Chelsea to the top of the table this season.
However, according to a number of reports, an offer from China, which would make Costa the highest-paid player in the world, has 'unsettled' the striker and thrown his future into doubt.
The Telegraph reports that the Brazilian-born forward has been dropped for Chelsea's Premier League clash with Leicester City this weekend following a row with head coach Antonio Conte.
It is understood that Costa has not trained with the rest of the Chelsea squad for the past three days, strengthening suggestions that the striker could leave for Asia in the January transfer window.