Ndidi formed a cover for the Leicester City defence that were busy all through the night as they kept Atletico quiet.
Ndidi made a returned from a minor injury to make his third consecutive start in the Champions League.
Atletico’s only goal game via a penalty by Antoine Griezmann who picked himself up after he was fouled.
Replays show that Griezmann was fouled just outside the penalty box by Marc Albrighton but the referee pointed to the spot.
The midfielder formed a cover for the Leicester City defence that were busy all through the night as they kept Griezmann and co quiet in the game.
In the game, Ndidi had a passing accuracy of 89%, created no chances, had one successful take on and had 60% success in tackles.
He won 80% of his aerial duels, had three interceptions, six clearances, and committed just one foul.
The 20-year-old was impressive again in the game, especially in the second half.
In the first half, he was caught of position especially in the 27th minute when Griezmann broke away before he was fouled by Albrighton for the penalty that led to the goal.
In the second half, Ndidi improved his awareness and defended a lot instead of bombing forward at any given opportunity.
Leicester City manager Craig Shakespeare brought in Andy King at halftime to shore up his midfielder and that helped Ndidi to focus more on defending.
In the second half, Ndidi alongside Robert Huth and Danny Drinkwater threw themselves at everything and kept Leicester City in the tie.