T he sight of Rebecca Knaak fighting back tears on hearing the full-time whistle last Sunday summed up what this means. The Manchester City defender had sustained a painful shoulder injury during a victory over Liverpool snatched by her late header so probably had her own reasons for finding the combination of relief, soreness and joy a little overwhelming. But her emotions could have been felt by any of the longer-serving season-ticket holders in the stands after a decade-long wait for a Women’s Super League title. When City lifted this trophy in 2016 , the landscape of the English women’s game was wholly different. The club, then managed by Nick Cushing, completed the 16-game campaign unbeaten and clinched the title on a day when they deployed a starting XI featuring nine English and two Scottish players from a squad that included only six non-English players. It was a time before the wider, full-time professionalism of the league and the influx of overseas talent.…