It was a simple goal, the lively Marcus Rashford shifted the ball onto his right foot and crossed into the middle.
The ball was perfect for Lukaku, who rose to flick a header past Ben Foster and into the far corner to give United the lead.
Lukaku has previous against West Brom, having had a hand in eight goals in eight league games against his former emmployer (five goals, three assists).
Check out the goal for yourself below:
Check out this awesome video: Romelu Lukaku Goal HD - West Brom0-1Manchester United 17.12.2017 https://t.co/FObzKu4iM6
— Soccer Is Life (@FootballLive30) 17 December 2017