Cristiano Ronaldo's retirement triggers a global frenzy. See how fans and football legends are bidding farewell to the GOAT with an iconic 'SIUUU forever!'. Football world came together to bid an emotional farewell to one of its greatest-ever players after Cristiano Ronaldo announced his retirement from international football bringing an end to his remarkable 23-year journey with Portugal The 41-year-old superstar confirmed his decision through an emotional social media message on Thursday.