5 factors that led to Ole Gunnar Solksjaer's first league defeat as Manchester United boss | Premier League 2018-19

#4 Arsenal were more clinical

Arsenal's first shot on target in the second half

Whereas United created more clear cut chances but failed to bury them, Arsenal did not have such problems, as they proved to be more clinical than their visitors in the match.

The Gunners scored with their first shots on target in both halves, (with Aubameyang's penalty in the second half being the only time when they had a shot at de Gea's goal in the entirety of the second half).

In total, Unai Emery's men had three shots on target for the duration of of the match, scoring with two of those which speaks volumes of how lethal in front of goal they were.

Arsenal came into the match knowing a defeat would almost guarantee that they would finish outside the top four for the third consecutive season, hence despite their knack for profligacy in the past, they raised their game against United, making the most of their premium chances and this proved to be the difference between them and a wasteful United.