Jamie Carragher has apologised to Chelsea fans before firing off a rant about problems in English football right now. Despite some poor results lately, Chelsea bounced back earlier this week with a super impressive 3-1 away victory over Aston Villa on Wednesday night. Mauricio Pochettino’s side knocked out Villa in the FA Cup fourth round replay, which sets up a crunch tie with rivals Leeds United in the fifth round. The Blues are really struggling with their league form this season, but they’re scheduled to face Liverpool in the Carabao Cup final later this month. They’re still alive in the F…