By Simon Mullock Pep Guardiola has warned his Manchester City players to land a knock-out blow at Anfield – or risk seeing Liverpool win another hometown decision from the match officials. City’s wretched record of just two victories in 43 years in front of the Kop has not been helped during Guardiola’s reign by a catalogue of contentious refereeing calls that have gone Liverpool’s way. Michael Oliver is in charge of the latest showdown between the Premier League heavyweights – and the City manager has admitted that the only thing his team can do is to play so well that they take any dodgy dec…