By John Cross Finally, the curse is over. It took 538 minutes and the best part of six games but the all-important goal arrived at long last. Nathan Ake’s late winner – a messy toe poke from a couple of yards out – was enough to Manchester City into the fifth round and keep the FA Cup holders on course for more glory. It almost defies belief that Pep Guardiola’s great entertainers had taken so long to find the net in Tottenham’s new stadium. Incredibly, they had not managed a goal and had lost on all five of their previous visits since it opened in 2019 and it looked like they had run out of t…