Marcus Rashford continued his impressive record against Arsenal to break the deadlock against the Gunners at The Emirates.
The England international nutmegged Thomas Partey before firing in a rasping shot from 25 yards out which beat Aaron Ramsdale at his near post.
This was Rashford’s third goal of the season against the Gunners, which gave United a 17th minute lead.
The strike was Rashford’s 17th of the campaign in total, with the star in red hot form since returning from the World Cup.
Roy Keane raves about Marcus Rashford after his goal v Arsenal
Former Manchester United captain Roy Keane told Sky Sports he was impressed with Rashford’s goal.
He told the channel: “It was a lovely bit of trickery. It’s a goal as soon as he pulls the trigger.
“He’s in the form of his life. The goalkeeper’s got no chance. Fantastic goal, brilliant.”
United’s lead only lasted seven minutes after poor passing out from the back between David Gea and Aaron Wan-Bissaka led to Eddie Nketiah heading in a cross.
The teams went in 1-1 at half-time, with Rashford’s effort one of just two shots Manchester United had on target in the first half.
While Rashford has scored plenty of times against the Gunners at Old Trafford, including in his first ever Premier League game, this was his first strike against them at The Emirates.