Hi everyone!

His is a Brazil National Team 2001 jersey signed by Ronaldo (R9) and Rivaldo. I’m from Brazil, and I recently found this jersey among my late uncle’s belongings. If the signatures are real, they were likely obtained back in the early 2000s, around that period.
There’s no paperwork, as it was kept as a personal item, not for sale. I know opinions here aren’t official authentication, but I’d really appreciate any thoughts—especially on the Ronaldo signature.
Photos attached.