Manchester United began their pre-season with a challenging away game in Norway vs Rosenborg, which finished with a 0-1 loss. The Norwegian side provided a stern challenge to a youthful United team with a sprinkling of some experienced stars, precisely the kind of pre-season game that helps build fitness. As with any game, some United players impressed, while others left a lot to be desired. Radek Vitek and Toby Collyer were the standout performers on the day. Vitek saved United repeatedly with a breathtaking display of goalkeeping while Toby Collyer was a ball-winning machine. As the pair ear…