Former England midfielder Paul Merson has questioned the logic of Chelsea selling Kai Havertz and Mason Mount to direct rivals, calling it "not good business".
The Blues have begun an overhaul after finishing 12th last season, with several players already offloaded before Mauricio Pochettino's first game as manager. However, while the likes of Edouard Mendy and Kalidou Koulibaly have moved to the Saudi Pro League, Havertz and Mount are staying in England.
German international Havertz has completed a £65m move to Arsenal to become the first new Gunners recruit of the summer. And with Mount on his way to Man Utd, Chelsea have brought in more than £100m for the pair, but Merson has his reservations.