manchester united crushed manchester city 4 2 at old trafford and sparked a string on viral images on twitter sergio aguero opened the scoring for city  but ashley young, marouane fellaini, juan mata and chris smalling all struck before aguero's second to all but end the champions' barclays premier league title hopes and the big win in the manchester derby inspired twitter users to produce a series of viral images which tended to pick fun at city's expense david moyes is labelled as a football genius for signing goalscorers juan mata and marouane fellaini  a screenshot from the austin powers films pokes fun at manchester city's sudden loss in form  fellaini has been transformed from a joke figure to a key player during this season at old trafford  a city fan watching the game is shown wearing a united shirt after the score changes from 0 1 to 4 1  the idea of city fans changing allegiances was popular here they are looking at buying a chelsea shirt  there is now a clear gap between untied and city in the barclays premier league   in the red side's favour  chris smalling scored his fourth league goal of the season which matches expensive loanee radamel falcao  'manchester is red!'   it's clear who the big winners were in the manchester derby from this image 
barclays premier league manchester united marouane fellaini chris smalling sunday old trafford juan mata ashley young manchester
manchester united beat manchester city 4 2 at old trafford on sunday  ashley young, marouane fellaini, juan mata and chris smalling all scored  internet pranksters ripped into the barclays premier league champions 