Cristiano Ronaldo's 'Siuuu': Know origin of CR7's iconic celebration

Cristiano Ronaldo has scored 923 career goals, often followed by his iconic "Siuuu" celebration since 2013

First performed during a preseason friendly in 2013 at Miami’s Hard Rock Stadium against Chelsea

Ronaldo celebrated with a leaping wide-stance pose, later adding a mid-air spin to highlight his name

Fans globally chant "Siuuu!" every time Ronaldo performs the celebration

Ronaldo's 'Siuuu' celebration has transcended football, inspiring athletes across sports like MMA, tennis, golf, and American football