A quick-fire double from Diogo Jota ensured Liverpool opened their pre-season campaign with an entertaining 4-2 win over Karlsruher in Germany. Jurgen Klopp handed summer signings Dominik Szoboszlai and Alexis Mac Allister their respective debuts in the Reds first pre-season clash, with the midfielders playing one half each. Diogo Jota struck twice in stoppage time as Liverpool began their pre-season …