Liverpool manager Jurgen Klopp has promised four-year-old terminally-ill fan William Watkins that his side will win the Premier League in an emotional video.The Reds are just two wins away from becoming top flight champions for the first time in 30 years, and could even wrap things up by beating Merseyside rivals Everton on Sunday.And the ever-gracious Klopp has dedicated all of Liverpool’s final efforts this season to young William, who is facing a heartbreaking fate after being diagnosed with cancer.William’s parents Ian and Nicola received the heartbreaking news last week that cancer has spread from the brain of their beloved boy and was also present in his spine.