Chances are you and/or flummoxed a loved one are going to hear cries of "siuuuu!" from the stands during Portugal games at Euro 2024 and realise you don't actually know where it comes from. Some of you may well know that it's something to do with the way Cristiano Ronaldo celebrates his goals, and yet and still none the wiser as to its origins.
The former Manchester United and Real Madrid star is one of the most recognisable faces on the planet, and his celebration – where he jumps in the air, spins, and lands with his arms outstretched – has become an very familiar sight, but it's the sound issuing forth from that famous visage that has become an international phenomenon.
