Manchester United's defensive deficiencies gifted Pep Guardiola's Manchester City a 2-1 derby victory on Sunday that allowed them to establish a massive 11-point lead in the Premier League. Romelu Lukaku was United's fall guy, his failure to clear two set-pieces enabling David Silva and Nicolas Otamendi to score either side of Marcus Rashford's opportunistic equaliser in first-half injury time.

Manchester Citys Brazilian midfielder Fernandinho (L) and Manchester City's English midfielder Fabian Delph (R) celebrate their 1-2 victory at the end of the English Premier League football match between Manchester United and Manchester City at Old Trafford in Manchester, north west England, on December 10, 2017. Pic/ AFP