Cristiano Ronaldo indicated on Monday that he could leave Al Nassr after declaring that a "chapter is over" hours after the Saudi Pro League finished.
The Portuguese forward joined Al Nassr in 2022 from Manchester United and his contract with the Saudi club ends this summer.
A special transfer window runs from June 1-10 to allow the 32 clubs involved in the Club World Cup to sign players.
Al-Nassr aren't at the Club World Cup unlike fellow Saudi side Al Hilal.
Al Nassr lost in the semi-finals of the Asian Champions League last month to Japan's Kawasaki Frontale and finished third in the Saudi Pro League.
Ronaldo was the league's top goal scorer on 24.