Sky Sports reported that Ajax defender Harto missed the team's warm-up roster today and is currently negotiating with Chelsea.
It is reported that Chelsea's target Hato has not entered the Ajax squad, and Ajax faced the Celtics in the Como Cup on Thursday local time.
19-year-old Harto went to Italy with his teammates to participate in the preseason, but he would not make a debut in this game.
Chelsea is in-depth negotiations with Ajax on Harto's potential deal, and Harto has informed the club that he hopes to leave the team.
Ajax's asking price for Harto is about £52 million, while Chelsea valued it at £35 million, and negotiations between the two clubs are still ongoing.