Tottenham Hotspur’s Argentine head coach Mauricio Pochettino reacts during the English Premier League match against West Ham United at the London Stadium on Friday. PIC/AFP

London: Mauricio Pochettino fears Tottenham have blown their chance of winning the Premier League because they lack the ruthless streak required to succeed under intense pressure. Pochettino’s side crashed to a shock 1-0 defeat at West Ham on Friday that left their title bid in tatters and put Chelsea within touching distance of being crowned champions.