Peru manager Ricard Gareca is upset with Deportivo Municipal over the sale of Rodrigo Vilca to Newcastle United.
Vilca completed his move to Newcastle on deadline day for around £200,000.
Gareca said: "It is good for the boy. We wish him all the best. If I analyse how much the player was sold for, I don't like it. I would expect a Peruvian player to cost much more. We need to be able to strengthen our market.
"We are talking about very powerful countries. Sometimes when the investment is low, the interest (in the player) is also low.
"I want him to go to a club and not be treading water. I prefer a consolidation in the (Peruvian) first division. He has already been summoned to the National Team and a Peru player should be valued.
"But it is only an opinion and we must continue to observe him."
