Reyes joined Atletico from Arsenal this summer.
The former Arsenal striker said: “I had hoped to play more, I am not going to lie to you, but these are decisions for the coach.
“We’ve had two games nothing else, there are many more to go and I wait for the chance to play in the starting XI.”
Reyes added: “When a player joins a new team, he always hopes to be a starter. It is important to recognize that there are very many players of great quality in my position and for that reason I cannot complain.”