Manchester City underlined the vast gulf in quality between themselves and Manchester United on Sunday as Liverpool showed their support for absent team-mate Luis Diaz, whose parents were kidnapped in Colombia. Old Trafford paid tribute to late United great Bobby Charlton ahead of kick-off, with supporters unfurling a banner that read: "The finest English footballer the world has ever seen". But memories of past glories failed to translate onto the pitch, with the home team thoroughly outplayed by the champions, who did not have to get out of second gear in their 3-0 win.