It isn't the first time we've seen this done, but watching naive football fans believing their club have signed a fake player is always fun.
This time it was Arsenal supporters who were fooled as a YouTube prankster purported to be star striker 'Fernando Wwirst' before the Gunners' clash with Chelsea.
With WAG in tow, 'Wwirst' made his way to the match as his mate kept the joke going by trying to nab an exclusive interview.
Fans were clearly intrigued by the commotion, with some stopping to take selfies and others remarking on the attributes Wwirst can bring to Arsenal.
Oh dear...
https://www.youtube.com/watch?v=sCCTD5RQKRw
