Liverpool were left wondering just how they managed to lose against Manchester United on Sunday. The Reds seemingly had the game exactly where they wanted it at 2-1 up in the second-half. But having failed to put United to bed, they were stung late on in regulation and then extra-time. Few played well for Liverpool, although the criticism the likes of Cody Gakpo in particular have taken has perhaps been unwarranted. One of those who didn’t have his best game was Darwin Nunez. The Uruguayan was directly at fault for Marcus Rashford’s extra-time equaliser, as he slammed a strange cross-field bal…