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.
Lukaku had netted in his first league appearances for both West Brom and Everton and he repeated that feat on Sunday, getting on the end of a Marcus Rashford pass to give the hosts a deserved lead in the 33rd minute.
Nemanja Matic also began to swiftly justify the fee paid by United to reunite the Serbian with his former Chelsea manager Jose Mourinho, impressing throughout at the base of midfield and completing a timely interception to trigger the counter-attack that ended in Lukaku's first goal.
The Belgian centre-forward doubled his tally eight minutes into the second half, when he headed home a Henrikh Mkhitaryan free-kick.
Substitute Anthony Martial and midfielder Pogba added gloss to the scoreline by scoring late on, leaving Mourinho and the home faithful cheered by the sight of a dominant display to open the campaign as they seek to challenge for a first league title since 2012-13.