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Gustavo Matosas has stepped down as manager of the Costa Rica national team after less than a year in the job, blaming the frequent downtime between games that made him feel unproductive.

"I realized that in the national side I feel unproductive even though I kill myself watching videos," Matosas said at a news conference Wednesday.

"It's not what I like to be doing.

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"It's tough not having players in the day-to-day to train them. I only have the players for a week every two months and it's killing me. I didn't know it was so hard. I thought I would be able to somehow endure it."

"I didn't know being a national team manager was so boring. I don't regret it and I don't leave frustrated because I gave my best. I won't manage a national team again. I can't only have the players every two months. It's not for me."

Gustavo Matosas will leave the Costa Rica national team after less than a year in the job. Omar Vega/Getty Images

An Argentine national who played for Uruguay, Matosas was in charge for just eight games but will stay on for Friday's friendly against Uruguay in the Costa Rican capital of San Jose.

Mexican and Costa Rican media are reporting that Matosas, 52, will soon take charge of Liga MX side Atletico San Luis, although the club's president Alberto Marrero denied it to Costa Rican outlet La Nacion.

"It's not true; we're going to sign another coach," Marrero said.