The Ronaldo 1998 Mercurial Boots Are Getting A Reboot - SPORTbible
1998 Nike Mercurial-Inspired Nike Air Max 97 Sneakers Revealed - Footy Headlines
Nike Mercurial 1998 R9 Black White FG – Classic Soccer Cleats
The Original Colorway Of The Nike Mercurial R9 Is Back On The Air Max Version - SneakerNews.com
Ronaldo and the Nike Mercurial R9's | The Football Fanzine
Mercurial Mk1 - The Original R9 - SoccerBible
Nike celebrate 15 years of Mercurial and recreate the R9 boot
I believe these are the mercurial r9 from 1998. I remember having a pair with the same colorway but without cleats. For indoor soccer I believe but can't find any info online.
Nike Mercurial Vapor IX SE FG MVXV (Ronaldo R9 1998) - Unboxing + On Feet - YouTube
Mercurial Mk1 - The Original R9 - SoccerBible
Ronaldo of Brazil sports his Nike R9 boots in the World Cup group A... News Photo - Getty Images