Romelu Lukaku starred on his competitive Old Trafford debut, scoring twice as Manchester United began the 2017-18 campaign with a comfortable 4-0 win over West Ham to lead the early Premier League table.
Jose Mourinho’s team were a constant threat against a poor Hammers side, offering excitement and encouragement to their supporters on the opening weekend of the new Premier League season.
Lukaku, a £75m summer signing from Everton, put the Red Devils ahead with a rising drive off the post after racing onto Marcus Rashford’s pass.
The Belgium international doubled the lead after half-time, glancing in a header from Henrikh Mkhitaryan’s inswinging free-kick.
United teenager Rashford curled against the inside of Joe Hart’s left-hand post before substitute Anthony Martial ended the match as a contest with a slick finish.
There was still time for a fourth, however, as Paul Pogba curled in from distance.
The Hammers offered little going forward in a passive performance, although new signing Marko Arnautovic did flick a header onto the top of the home crossbar at 2-0.
The Red Devils have now lost only one of their 14 opening-day Premier League fixtures at Old Trafford, while West Ham’s season began with a record 11th defeat.