Chelsea have signed Argentina international Valentin Barco from sister club Strasbourg on a seven-year deal. Chelsea FC is pleased to confirm the signing of Argentinian international Valentin Barco from RC Strasbourg. Welcome to Chelsea, Valentin! He was involved in a heated exchange with England’s Jude Bellingham immediately after his side’s 2-1 World Cup semi-final win in Atlanta, with Bellingham appearing to clip Barco around the head. It continues a busy summer in the transfer market for Chelsea as they look to remodel under Alonso.