Pep Guardiola declared himself “not good enough” after Manchester City’s season sunk to a new low after a 2-1 defeat to Manchester United.

Amad Diallo has struck a 90th-minute winner as Manchester United staged a stunning late comeback to beat Manchester City 2-1 in the Premier League.

Rasmus Hojlund scored twice after coming off the bench and Manchester United rallied to beat Viktoria Plzen 2-1 in the Europa League.

Manchester United secured its first win in Europe in more than a year by beating PAOK 2-0 in the Europa League.