Man City mock Man United with a video compilation of four knee-slide goal celebrations at Old Trafford just THIS season... as football fans laugh at the league leaders' 'totally unnecessary' jab at their rivals!

Manchester City poked fun at their arch-enemies with a playful compilation of their stars sailing knees-first across the Old Trafford turf. 

The video shows Erling Haaland, Lauren Hemp, Phil Foden, and Khadija Shaw sliding across the hallowed green expanse when celebrating their goals this season. 

City beat United 3-1 on Sunday to overtake them in the Women's Super League while they put their rivals to the sword 3-0 in the Premier League in October. 

'Every City knee slide at Old Trafford this season!' the club posted on X with a saluting emoji. 

Rubbing salt in United's wounds in such brazen fashion is only sure to stoke the historic rivalry between the clubs. 

'There’s no way y’all cooked United this badly,' wrote one user on X, formerly Twitter. 

'The OLD TRAFFORD is a training ground for Manchester City,' gloated another. 

'Theatre of knee slides,' quipped one user.

But United fans hit back hard in the comments section. 

'Sliding into the Championship,' joked one individual. 

'Small club mentality,' added another. 

'Nahhhh! This wasn't necessary,' was the verdict of another. 

It is worth noting that for all of City's joys at Old Trafford this season, they have a mixed record when hosting the Red Devils. 

In the men's game, United have won four of their last eight trips to the Etihad, so their social media admins could well turn the tables in March.

However, in the women's game, United are yet to beat City away since being promoted to the WSL, so still have work to do.