Petros only actually played Rios twice, once when Rios was still a teen at Roland Garros and at the end of Rios career indoors. Both times Rios tested Peter and gave him trouble. Prime Rios could have conceivably toyed with Petros like he did Andy Agassi in Miami and Munich.
"In the beginning my coach was angry at me because I was too nice on the court." --Gustavo Kuerten