Diego Costa emphatically stated his commitment to Chelsea on Friday after a report in Spain said a move to China was all but completed.
Radio station Cadena Ser claimed that Chinese Super League club Tianjin Quanjian had reached a pre-contract with Costa that would pay the forward €30 million a year.
But Costa rubbished the speculation later on Friday by writing on Instagram: "They talk too much s---!!! Come on Chelsea."
Costa had been linked to move to Chelsea last month following a row with a fitness coach during training, but sources close to the player told ESPN Brasil last month that Costa had told friends he has no interest in accepting a lucrative offer from China.