Pundit Joe Cole has claimed that he believes referee Paul Tierney made one huge error in tonight’s Premier League match between Chelsea and Liverpool. He told BT Sport that he is convinced the visitors should have had a penalty early on last night at Anfield, before going on to lose heavily. Mauricio Pochettino’s side were well beaten in the end, losing 4-1 to an inspired Reds side. Christopher Nkunku’s goal off the bench was one of the few moments of joy for a Chelsea side who will now be no more confident about their chances in the EFL Cup final next month. Supporters will have been left ask…