As the transfer band will be lift up in January, lots of star would be moving to so many Clubs depending on how the deal goes through.
Arsenal vows to give Granit Xhaka to Herta Berlin at a deal of about €40m in January transfer.
The midfielder would be moving to the Hertha when the deal clicks.
The Berlin promised to offer a sum of €35m for the star and he is unlikely be playing again for Gunner again. He is joining the Berlin immediately the Arsenal managements accept the price.
New Gunners manager Mikel Arteta has also stressed how much he rates a player he previously scouted while working at Manchester City.
Arsenal in the other side has been linked with Leipzig for transfer talks and they may likely grab their central defence as one one of top stars in the club.
The 21-year-old could be allowed to leave the German club if they can sign fellow Frenchman Tanguy Kouassi from Paris St-Germain.
The 17-year-old Kouassi is seen as the long-term successor to Upamecano, but Leipzig are prepared to start the process early.
That would pave the way for the Gunners to pursue Upamecano.