"This chapter is over," Ronaldo cryptically said on social media with a photo of him in an Al-Nassr shirt.
Ronaldo, the top scorer in this season's Saudi Pro League, has eight in seven appearances in this campaign's Champions League Elite, one short of joint-top scorers Riyad Mahrez, Salem Al-Dawsari, Anderson and Jasir Asani.
The 19-year-old forward, who trains daily alongside one of football’s all-time greats, is part of a promising Saudi Arabian generation aiming to make a statement on the global stage.
Al-Nassr remain in the third place with 54 points but they are now three points behind second-placed Al-Hilal and seven off leaders Al-Ittihad, who visit Al-Ahli on Saturday.
Cristiano Ronaldo's Saudi side Al Nassr were on Monday drawn against last season's runners-up Yokohama F-Marinos of Japan in the quarter-finals of the Asian Champions League.
Ronaldo, the Al Nassr captain, was reportedly rested for last week's goalless draw in the first leg in Iran, however returned to lead the side at Al Awwal Park.
Ronaldo turned 40 last week with his current contract due to end in June 2025.
Al Nassr captain Ronaldo had looked destined to endure a hugely frustrating game following a series of missed opportunities in the first half at Al Bayt Stadium.
The Portuguese star, without a goal in his past three appearances for the Saudi Arabian side, netted the second of the hosts' goals at Al Awwal Park in Riyadh.
Cristiano Ronaldo's move to Al Nassr could lead to a financial windfall for his new club and Saudi Arabia, football finance expert Neil Joyce told Reuters, as the Portugal international gears up for his first game in the country since the deal was announced.
A Saudi real estate mogul won a ticket to see Cristiano Ronaldo and Lionel Messi face off in a friendly after bidding $2.6 million at auction, an official said Tuesday.
Cristiano Ronaldo is set to play in Saudi Arabia for the first time since joining Al Nassr after he was named as captain of Riyadh ST XI for an exhibition match against Lionel Messi's Paris St Germain, officials announced on Monday.
A Saudi Arabian businessman is leading bidding to watch the latest chapter in Cristiano Ronaldo and Lionel Messi's celebrated rivalry in global soccer with a 10 million riyals ($2.66 million) offer for a ticket to a showpiece game.
Saudi Arabian club Al Nassr have denied reports that Cristiano Ronaldo has a clause in his contract where the Portugal forward is to serve as an ambassador for the Gulf country's 2030 World Cup bid.
Footballer Cristiano Ronaldo will earn 200 million euros to promote Saudi Arabia's joint 2030 World Cup bid in addition to his club salary, a source close to his club told AFP Monday.
Cristiano Ronaldo will serve his suspension before making his league debut for his new Saudi Arabian club Al Nassr but he could play against Paris St Germain in a friendly this month, coach Rudi Garcia has said.
Portuguese star Cristiano Ronaldo could make his Saudi Arabian debut on January 22 after he was successfully registered by new team Al Nassr, a club source told AFP on Saturday.
Portuguese superstar Cristiano Ronaldo still needs to serve a two-match English Football Association ban before making his Al Nassr debut, an official at the Saudi club told AFP on Friday.
Cristiano Ronaldo has been urged to speak out about human rights issues in Saudi Arabia after completing his big-money move to Al Nassr.