Mastantono: I know there are still many things to learn and I will do my best to Real Madrid jerseys

After signing with Real Madrid, Mastantono said in his debut speech that he will remember this day for his whole life.

Mastantono said: "Today, I joined Real Madrid, the largest club in the world. This is a special day and I will remember it for my life. Thank you to all my friends from Argentina, you are very important to me."

"I know I still have a lot to learn, but I promise to do my best for this jersey. On the court, you will have a loyal supporter. Thank you everyone! Come on, Madrid!"