The forward has strongly denied an allegation of rape and the Juventus star's lawyer says evidence against his client is fabricated
Cristiano Ronaldo has been urged by lawyers representing Kathryn Mayorga to hand over any evidence to support the claim that documents in a rape allegation were fabricated.
American Mayorga has accused Juventus attacker Ronaldo of sexually assaulting her in a hotel room in Las Vegas in 2009, something the Portuguese has strenuously refuted.
German publication Der Spiegel first reported the claims, which also included the suggestion Ronaldo paid Ms Mayorga $375,000 in 2010 as part of a privacy agreement, preventing her from going public with the allegations.