Park, a former academy player at the League Two side, was brought on with 20 minutes remaining at the Anoeta Stadiumas the Spanish giants tried to make a breakthrough in their La Liga opener against Real Sociedad.
In the history of Los Blancos, no Nigerian has ever played for the side unlike other big clubs in Europe where Nigerians have played. Keep working and learning.
Marvin joined Real Madrid U17s in July 2016 from AD Penya Arrabal Youth.
Marvin Park in Real Madrid debut against Real Sociedad.
And with his impressive form for Castilla in mind, Zidane gave the 20-year-old his senior debut alongside another youngster, Sergio Arribas.
Marvin Park in Real Madrid debut against Real Sociedad
"We didn't change the system".
"It was hard because we could have brought on another striker but that would have changed our shape and I didn't want to do that, I wanted to improve our wing play by bringing on wide players and that's what we did", Zidane said.
Benzema missed Real's best chance of the first half when he lost his footing as he rounded goalkeeper Alex Remiro and later saw a goal-bound shot blocked by a dive from Sociedad defender Aritz Elustondo.
"We had to bring players on in wide areas and that's what we did. Casemiro didn't start the game, it was a one-off thing and that's all there is to it".
Park, who has represented Spain at U19 level, was born in Spain to a Nigerian father and South Korean mother, and barring his stint in England with Tranmere, has spent his life in Spain.
Next up for Real Madrid is another Laliga Santander away match against Real Betis on matchday-3, on Saturday, September 26.