Alexis Sanchez scored his first Manchester United goal as they bounced back from defeat to Tottenham by cruising to a straightforward 2-0 win over Huddersfield Town.
Jose Mourinho caused a stir by dropping Paul Pogba - who was hauled off in the 2-0 loss at Spurs - for Huddersfield's visit and, while his absence was notable in midfield, United rarely looked like dropping points at Old Trafford.
The hosts were dominant throughout the first half and should have been given a penalty when Scott McTominay – Pogba's replacement – was barged into by Terence Kongolo.
Clear-cut chances were something of a rarity before the break, however, as United's play suffered because of a lack of width caused by Jesse Lingard, Juan Mata and Sanchez – making his home debut – all wanting to occupy central positions.
When United did alter their system in order to exploit the flanks, the breakthrough eventually arrived – Mata crossing to Lukaku for a neat, near-post finish in the 55th minute.
Sanchez then wrapped things up 22 minutes from time, tucking home after his initial penalty was saved to get off the mark for United, who cut Manchester City's emphatic lead to 13 points following the latter's 1-1 draw with Burnley.