The Gunners destroyed Villa 7-0 while Chelsea had a tough 1-0 away win at Birmingham thanks to a late Pernille Harder penalty.
It means they only have to beat United next Sunday to be crowned champions.
Arsenal are actually four points behind Chelsea as they have a game in hand to be played on Wednesday at the Emirates Stadium.
This is the postponed North London Derby that was supposed to be played on matchday 18 and postponed due to Covid -19.
It is a must win game as a draw would leave us with United needing to win at Chelsea to be with a chance to win the title.
In the unlikely event where Arsenal and Chelsea end up tied on points with 53, Arsenal would be crowned champions due to their better goal difference, but this scenario should not play out.
Arsenal, Chelsea and Manchester City are the form teams and have managed to get 15 points from their last five games, so expect all of them to get three points on Wednesday and Sunday to make the three champions league places.
Arsenal were fantastic on the day against Villa creating many chances and scoring some beautiful goals.
Nikita Parris joined the 50 FA WSL goal club thanks to a late penalty.
Kim Little kindly offered her to take it to hit the milestone in a typical Kim Little gesture.
There is no doubt that the end of season comes with a feeling of “what might have been” considering it will end up with likely no trophies. But there is a clear improvement from last season with Joe Montemurro.
The game was marred by a Jordan Nobbs injury late in the game a few minutes after coming on as a sub.
With so many questions about her future at the club due to the lack of playing time, it would be a sad end to her Arsenal career, should she transfer during the summer window.
At the bottom of the League table, Birmingham are nearly down now. They lost to Chelsea 1-0 while Leicester drew with Reading.
Therefore they have a must win midweek game against Manchester City otherwise they will be relegated. And then you do wonder what will happen to the team as the parent club does seem interested in bankrolling them as seen with the really small budget and working conditions.
Hopefully, many fans will turn up for the North London derby at the Emirates Stadium as the previous numbers this season against Chelsea, Barcelona and Wolfsburg have not been great and such a talented team needs better backing from the Arsenal fans.