Police are investigating claims by the Brazil international that Andre Luiz Ribeiro Albertini, known as Andreia Albertini, sought to extort money from him after he contracted the services of three transvestites - believing them to be women - and took them to a motel.

There has been much speculation that his sponsorship deal with Nike could now be at risk, but a statement on the player's official website denied this was the case.

It read: "The recent events involving Ronaldo are entirely of personal nature and do not in any way jeopardise any promotional deals, nor does it give rise to circumstances in which parties with whom he has contractual responsibilities have the right to rescind any deals."

As well as Nike, the player's sponsors include Italian telecommunications company TIM, Brazilian beer brand Brahma and banking group Santander.

Ronaldo's agent Fabiano Farah added: "What happened is not a legal matter.

"Decisions of this nature (ie rescinding of contractual agreements) are not within the remit of those who have legal contracts with Ronaldo.

"His contractual agreements do not provide scope for that sort of decision, and could only be rendered null and void if Ronaldo were found guilty of something.

"But he has committed no crime, and has broken no law. On the contrary, he is the victim in this case."

The AC Milan star was in Rio as he attempts to recover from cruciate ligament damage.

He is now in Angra dos Reis with his family, where he is continuing his rehabilitation.

The statement continued: "Ronaldo has not been summoned by police to give further statements but is ready and willing to cooperate if called upon."