Valentin Barco became Chelsea's seventh signing of the transfer window on Sunday after joining from sister club Strasbourg on a seven-year deal. Capable of operating at both left-back and in midfield, Barco had a brief spell in the Premier League previously with Brighton three seasons ago. He moved to Strasbourg initially on loan from the Seagulls in 2024, but signed permanently a year later having helped the club to qualify for the Conference League. Barco's arrival continues a busy summer in the transfer market for Chelsea as they look to remodel under new boss Xabi Alonso. AdvertisementAdvertisement AdvertisementOn Saturday the Blues confirmed the signing of veteran striker Danny Welbeck from Brighton, following the arrivals of Crystal Palace's Maxence Lacroix and Morgan Rogers from Aston Villa.