The exact origin of this 'vamos Sergio' recording is not documented, and it circulates as a user-uploaded soundboard clip with the label 'mgnt'. Short fan chants like this one spread because they are easy to reuse: anyone can drop a one-second cheer into a highlight, a meme or a birthday edit without context. It likely caught on with Spanish and Portuguese speaking fans, where 'vamos' is the everyday word for cheering someone on. Its staying power comes from that simplicity, since every Sergio, on the pitch or off it, eventually gets a moment worth a chant.