Manchester United registered their first game of the pre-season, a dispiriting 0-1 loss to Norwegian side Rosenborg. Despite the defeat, there is an air of hope and expectation around the club, as, after many false dawns, this does look like the start of a new era. Perhaps nothing symbolised the beginning of that era than a cursory look at the touchline, where Erik ten Hag was joined by the new coach and club legend, Ruud van Nistelrooy. He has been joined by Rene Hake and Jelle ten Rouwelaar but no other news got United fans quite as excited as the arrival of the man who used to score for fun…