Newcastle United have a money-spinning reason for visiting Japan on this summer’s pre-season tour. The Magpies will fly out to Japan at the end of July for friendly matches against Urawa Red Diamonds and Yokohama F.Marinos as they prepare for 2024-25. In doing so, they follow in the footsteps of Man City, Paris Saint Germain and Inter Milan, who have all toured the country in recent years. Tottenham meanwhile, whose emphasis on commercial revenue mirrors Newcastle’s own, will also visit the east-Asian country this summer. But as well as the riches on offer from tour sponsors, match promoters a…