Cristiano Ronaldo’s first match in Saudi Arabia could be against rival Lionel Messi in friendly against Paris Saint-Germain

Cristiano Ronaldo and Lionel Messi are set for a reunion in January in the Portuguese star’s first match in Saudi Arabia.

Ronaldo put pen to paper on a two-and-a-half year deal with Saudi outfit Al-Nassr, bringing an end to a glittering career in Europe.

The money-spinning switch is set to…