He committed to playing for Al-Nassr earlier this year in a deal that makes him the highest paid player in the world, reportedly earning €15m per month.

The deal also includes a minority stake in Al-Nassr and gives Ronaldo a say in which players they sign.

Brown believes Ronaldo's power and influence could be useful at Manchester United, and thinks he could make a successful transition from playing to an executive role.

However, Ronaldo's goal of scoring 1,000 professional goals and his high earnings with Al-Nassr make a return to Manchester United unlikely.