Manchester United legend Gary Neville hilariously couldn’t resist the opportunity to take a cheeky swipe at Jamie Carragher over Jurgen Klopp’s decision to step down as Liverpool manager. Gary Neville and Jamie Carragher have not been afraid to trade verbal blows and aim cheeky digs over United and Liverpool during their time on Sky Sports punditry. Jurgen Klopp stunned the world on Friday after he announced that he would leave Anfield at the end of the season, with the Liverpool boss claiming that he is “running out of energy.” Following the Liverpool manager’s decision, Manchester United fan…