Federer beat John Isner to win the Miami Open last night and secure the 101st ATP title of his career.
The Swiss star has been successful on every surface over the last two decades.
And that even includes when the Madrid Masters trailed the blue clay in 2012.
Petchey has hailed Federer for being able to adapt to the different environments in which he has been tested.
“I think just like great writers never die, until be stop quoting them, Roger Federer is never going to retire because we are never going to stop watching highlights of him,” he told Amazon Prime.
“He is just simply an inspiration out there.
“He is a chameleon. He has won in Madrid on the blue clay when that came in.
“He started his career as an out-and-out serve and volleyer on grass, we now know he wins that tournament from the back of the court.
“He has played in an era with some other outlines; with Rafa and with Novak and he has beaten those.
“He is playing in an era with 6ft11 guys serving at him and he is still winning.
“It is phenomenal.”
Federer initially struggled with his first game at the Hard Rock Stadium as he dropped a set against Radu Albot – the only set he lost all tournament.
And after that second-round clash he explained the difficulties on playing on new courts.
“I mean, a very key element of our sport is you can hear a pin drop, right? Here it’s not so much the case,” Federer said.
“When somebody hits the ball, it’s not as clear maybe, which then can feel almost like it’s a little bit of an empty space. That can feel maybe a little bit different.
“I didn’t feel like it was totally something out of the ordinary where I had no clue where my boundaries were, like I’ve had maybe at some other courts from around the world in the past. I’ve gotten used to it quite quickly.”