Pablo Gozalbez was thrilled to make his Valencia debut last week.
The prospect featured in their surprise victory at Sevilla.
Gozalbez said on social media: "I still can't find the words to express what I experienced this Friday.
"A dream come true to debut in LaLiga with the team of your life and to do it with a victory in such a tough ground.
"I want to thank all the people who have been with me along the way: fans, friends, family and the coaching staff for the opportunity."