Ronaldo's post on X, where he has 115 million followers, immediately sparked speculation about his future as a player.
No official statement from the club has been announced, and otherwise, Ronaldo is tight-lipped.
The Portuguese goal machine published his post a few hours after the last round of the Saudi league on Monday.
Ronaldo, five-time winner of the World Championship's best football player, received great attention when he signed a highly lucrative contract with Al-Nassr at the end of 2022.
The contract expires on June 30.
The expanded World Championship for club teams begins as early as June 14, but thanks to a specially introduced transfer window, Ronaldo can change clubs and play in the championship in the USA.
The International Football Federation's chairman Gianni Infantino already spoke out on Saturday about Ronaldo and a club change.
Discussions are being held with some clubs. So if some clubs see this and are interested in tying Ronaldo to themselves ahead of the World Championship for club teams, who knows? Infantino said to the YouTube channel IShowSpeed.
Al-Nassr finished third in the Saudi league and did not qualify for the club World Championship.
