Boxing / MMA [VIDEO] GUILLERMO RIGONDEAUX VS. JOHN RIEL CASIMERO PRESS CONFERENCE sportsnewsnetwork - July 21, 2021 0 World champions Guillermo and John Riel Casimero recently hosted a virtual press conference to announced their upcoming August 14 showdown. You don’t want to miss what they had to say about the fight and much more. Check it out!