Chelsea’s players will have left Wembley with a similar thought to the fans who streamed out after 120 minutes yesterday – how did we not win that? Virgil Van Dijk’s extra-time header separated the two sides in the EFL Cup final, with the Blues blowing their chance at winning the first trophy since the change of ownership. It was also another opportunity gone begging for manager Mauricio Pochettino to win his first trophy in English football, as he was forced to watch Jurgen Klopp lift the first honour of the season. The players will have put a lot of pressure on themselves to perform, given t…