Meanwhile, at the boxing, Ronaldo missed an incredible night that included Joseph Parker's second round knockout of late stand-in Martin Bakole, and Bivol's tight majority points victory over rival Beterbiev.
Ahead of last night's huge Last Crescendo show, topped by the rematch between Dmitry Bivol and Artur Beterbiev, Sky Sports posted a video including a ringside seat labelled "CR7".
He captioned it: "Happy to celebrate Founding Day with His Royal Highness Crown Prince Mohammed bin Salman, and honoured to attend the Saudi Cup horse race ceremony in Riyadh.".
The Portuguese star, 40, has been to plenty of events since moving to Saudi Arabia, and even sat next to Anthony Joshua for last year's first fight between Tyson Fury and Oleksandr Usyk.
Ronaldo uploaded a picture of himself with Saudi Prime Minister Mohammed bin Salman.
