Prosecutors have announced they will NOT file criminal charges against soccer superstar Cristiano Ronaldo for an alleged sexual assault from 2009.
As we previously reported, Kathryn Mayorga claims Ronaldo raped her in a Las Vegas hotel room back in 2009.
She had initially filed a police report describing the alleged crime -- but didn't identify Ronaldo by name.

Mayorga sued Ronaldo claiming she later accepted a $375,000 payment in exchange for her silence -- but recently announced she wants that agreement voided and went to cops to pursue a criminal case against Ronaldo.