Manchester United v Manchester City: Defensive frailties could be vital

The GuardianManchester United v Manchester City: Defensive frailties could be vitalThe GuardianAlvaro Negredo v Phil Jones. Manchester United were without four centre-backs for their 2-0 victory at West Ham on Saturday, meaning that Michael Carrick was forced to deputise in defence, with Marouane Fellaini dropping back to help against Andy Carroll.