Big Ted it was surprising to read that Bollettieri and a few other tennis insiders said Rios was a very hard worker. Rios presented the contradictary illusion that he was nonchalant and didn't care or feel like trying so hard. Guess that was all a clever deception by Rios. Which worked to some extent.
"He looked like he was trying to imitate Sampras when I first played him." Agassi in Facing Federer