Cristiano Ronaldo is waiting to make his first appearance for Al-Nassr (Shutterstock)

Al-Nassr have been unable to register Cristiano Ronaldo for his debut as they have exceeded their limit for non-Saudi Arabian players in their squad.

Ronaldo has signed a £175 million-a-year deal with Al-Nassr and was officially unveiled by the club earlier this week.

Al-Nassr were due to play Al-Ta’ee on Thursday before the game was postponed after heavy rainfall in Riyadh and Ronaldo had indicated that he is ready to play as soon as possible.

However, the 37-year-old is currently serving a two-game suspension from the Football Association after he slapped a phone out of the hands of an Everton fan last April.

Ronaldo may now face an extended wait to make his first appearance for his new club as Al-Nassr need to reorganise their squad to accommodate their marquee signing.

Al-Nassr currently have eight foreign players in their squad, which is the maximum allowed under the rules of the Saudi league.

Cristiano Ronaldo’s debut for Al-Nassr could be held up due to Saudi league rules (Getty)

‘Al Nassr has not registered him yet because there is no vacancy for a foreign player,’ an Al-Nassr official told AFP.

‘A foreign player must leave to register Ronaldo, either by selling or by terminating the contract by mutual consent.’

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Al Nassr’s overseas contingent includes former Arsenal goalkeeper David Ospina, Brazilian duo Luiz Gustavo and Anderson Talisca, and Cameroon striker Vincent Aboubakar.

Al-Nassr are due to play Al-Ta’ee in their next league game on Friday, while Ronaldo has already trained with his new teammates.

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The 37-year-old could face an extended wait for his first appearance in Saudi Arabia.