The Foxes chained Ronaldo to King Power Stadium, with the 36-year-old cutting a frustrated figure as he remained on the outskirts of the game.
Rodgers paid tribute to Ronaldo after the game, hailing him as a role model for every young player, but revealed that his side need to focus on stopping more than the center-forward.
Leicester attempted to quash United’s much-vaunted attack with a controlling midfielder display and Rodgers was enthusiastic about the aggression and insisted on his side’s play in the remarkable victory.
But as far as Ronaldo is concerned, the Leicester boss knew that staying lit was going to be vital for his side against a player who has a very different approach to his first stint in the Premier League.
“The awareness of your advocates is that you need to be focused throughout. There’s a moment right at the end where it looked like he was coming in, ”Rodgers said.
“Cristiano’s game has changed over the last few years, from being a dribbler to this incredible goalscorer where most of his goals come from inside the box, so that’s how it’s going to be for him at certain moments of the match.
“You have to care more than him because you have Bruno Fernandes behind the score midweek, Cristiano with a hat-trick, Mason you see his goal, what a strike and what a young player he is, so you have guys like Jadon Sancho and Marcus to enter the match.
“They have a huge talent, overall as a team you have to be so in sync in your press to try to keep the ball from getting to them. When they get there, which they will sometimes do, you have to be so focused and luckily we did a great job. “
Ronaldo may have gone white in the East Midlands, but Rodgers remains impressed with his quality and, just as importantly, his approach to the game.
“He’s a remarkable role model for all players,” he said. “What a defender for every player, young and old, how to take care of yourself, how to devote your life to your career, to have this hunger, this ambition, this motivation, this will to win and to succeed. He’s a player who always goes danger and you can already see it in his numbers, he scores goals. “