Real Madrid coach Carlo Ancelotti praised Vinicius Jr after their 2-2 draw at Valencia.
Real came from 2-0 down to draw 2-2 on the day thanks to Vini Jr.
Ancelotti said: "He played a very good game. He was a determining factor for us. He was more effective in the box than he was outside it. Foulquier did an outstanding job to counter him. He scored two very important goals for us.
"I'm not worried. It was a very complicated match for many reasons. Our opponents are strong, aggressive and well organised. They created a lot of problems for us in the first half, but we were able to get into the game eventually.
"We have to continue in the same vein because at this stage of the season a point here could be crucial."