It is understood he has not trained with the first-team for the last three days after he was the subject of a £30m-per-year offer from a club in the Chinese Super League.
Sky sources understand the Spain striker has become unsettled by the approach from China, which would make him one of the highest paid footballers in the world, and he became embroiled in an argument with two fitness coaches.
Conte then stepped in and, according to Sky in Italy, the row ended with the Italian shouting: "Go to China!"
