Pierre-Emerick Aubameyang made no mistake from the spot as his second-half lone goal ensured Arsenal got their first win away at Manchester United in the Premier League for the first time in 14 years on Sunday.
In his 100th game as United manager, Solskjaer stuck with the 4-4-2 system that demolished Leipzig in such stunning fashion.
Starved of the chance to counter-attack by the visitors’ disciplined set-up, United were far from the threat that thrashed RB Leipzig 5-0 in the Champions League in midweek.
Arsenal has struggled for goals of late but were gifted the chance to win the game by Paul Pogba’s mistimed lunge on Hector Bellerin and Aubameyang’s first league goal since the opening day of the season moved Mikel Arteta’s men up to eighth.
The gunners then held out doggedly with the closest United coming to an equaliser when Mohamed Elneny and Leno combined to turn Donny van de Beek’s cross onto their own post.
The victory also ended a run of 29 games without a win away from home for Arsenal against their ‘big six’ rivals stretching back to January 2015.
While United’s run without a home win in the league stretches to six games as Ole Gunnar Solskjaer’s men sink to 15th in the table.
Tottenham Hotspurs 2 – 1 Brighton
Meanwhile, in London, Premier League returnee, Gareth Bale scored a 73-minute header to give José Mourinho’s side three points which moved them to second on the league table.