Chelsea will have regrets over not signing one player when he was younger. Their academy has produced a lot of talented footballers, especially over the last few years. The likes of captain Reece James, Levi Colwill and Mason Mount, now at Manchester United, all progressed through the ranks at Cobham, for example. However, it looks like Chelsea could have had another exceptional talent on their books. The one that got away for ChelseaRight now Jude Bellingham, Vinicius Junior and Erling Haaland are probably the three best young players in the world. Each would cost a fortune today and that is …