Researchers at the website produced a Soccer Power Index (SPI) which provides teams with an offensive and defensive rating.
The table sees United down to an embarrassing 17th rank, which is behind clubs like Napoli, Inter Milan, RB Leipzig, Ajax and Bayer Leverkusen.
To add more salt to the wound, United's greatest rivals Liverpool and Manchester City ended up in the top three
Barcelona were ranked the top Spanish side, finishing fourth, whereas Real and Atletico Madrid came in seventh and eighth respectively.
Here's a table showing the top 20:
Ranking | Club | League | Rating |
1 | Manchester City | Premier League | 94.3 |
2 | Bayern Munich | Bundesliga | 94.0 |
3 | Liverpool | Premier League | 92.9 |
4 | Barcelona | La Liga | 91.2 |
5 | PSG | Ligue 1 | 87.8 |
6 | Chelsea | Premier League | 86.0 |
7 | Real Madrid | La Liga | 85.2 |
8 | Tottenham Hotspur | Premier League | 85.2 |
9 | Juventus | Serie A | 84.1 |
10 | Borussia Dortmund | Bundesliga | 83.6 |
11 | Atletico Madrid | La Liga | 83.1 |
12 | Bayer Leverkusen | Bundesliga | 82.4 |
13 | Ajax | Eredivisie | 82.2 |
14 | RB Leipzig | Bundesliga | 81.7 |
15 | Inter Milan | Serie A | 81.5 |
16 | SSC Napoli | Serie A | 81.0 |
17 | Manchester United | Premier League | 79.8 |
18 | Arsenal | Premier League | 79.2 |
19 | Everton | Premier League | 78.5 |
20 | RB Salzburg | Bundesliga Austria | 78.5 |