Lionel Messi chants were directed at Cristiano Ronaldo during Al Nassr's encounter with Al Ettifaq in the King Cup on Tuesday night.
On Monday Messi was awarded a record extending eighth Ballon d'Or in a ceremony in Paris.
Messi won the award upon skippering Argentina to their third World Cup triumph last December, overcoming France on penalties in a memorable final.
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The pint-sized genius netted seven times and was named player of the tournament, giving himself the edge over runner-up Erling Haaland and third-placed Kylian Mbappe.
The victory means Messi now has three more Ballon d'Ors than his great rival Ronaldo, who wasn't even nominated in the 30-man shortlist for the first time since 2003.
And while featuring for Saudi Pro League side Al Nassr in the King Cup, Ronaldo was taunted with 'Messi, Messi' chants by the Al Ettifaq faithful.
As can be seen in the above clip, the former Manchester United star could not help but react in an animated fashion.
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Ronaldo put his finger to his lips to shush the Al Ettifaq crowd.
Later in the game, after Sadio Mane netted for Al Nassr, Ronaldo was seen celebrating wildly and cupping his ears to Al Ettifaq end.
Following the Ballon d'Or ceremony, Messi spoke to reporters about his latest accolade and was asked if he had cemented his status as the greatest player in the history of the sport, above long-time rival Ronaldo.
"As I always said, I do not know if I am the best player in history or not," he replied, as per TalkSPORT. "If I am one of the best, then this is a wonderful thing."
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Topics: Football, Lionel Messi, Cristiano Ronaldo, Al Nassr, Saudi Arabia, Saudi Pro League