Ronaldo was forced to leave the game with a knee injury in the first half, but he was a constant presence on the sidelines as he continued to instruct his teammates during the extra-time win.
"A lot of people will be quite happy that this is not all about Ronaldo," Winterburn told Sky Sports.
"Yes, Ronaldo is their star player but they also had other players in that team who were prepared to work and gave absolutely everything.
"In fairness to Ronaldo, I give him fantastic credit, too, because it's easy to think when you've been injured that you should be out there [on the pitch].
"However, he was backing his team-mates right until the last moment and although he's only played a small part in the final, you could see how much it meant to him."