Christian Pulisic (Chelsea to Milan, £18.9m)
Todd Boehly has now poured more than £1bn into Chelsea, but it wasn’t just their big spending that caught the eye this summer. Boehly conducted a fire sale of unwanted first-team players; several went to Saudi Arabia, while Christian Pulisic and Ruben Loftus-Cheek joined Milan. Signed for £57.6m from Dortmund in 2019, Pulisic was sold for a maximum €22m (£18.9m) – this figure feels at least £10m short. Given the Rossoneri’s desire to develop their brand in the US, his presence alone could be worth the cut-price fee. As it happens, he announced his arrival with a superb goal at Bologna.