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2015 marked the year when Celso Borges joined Deportivo La Coruña. Borges, a Costa Rican midfielder, made his debut for the Spanish club during the 2015-2016 season. He quickly became a key player for Deportivo, helping them achieve promotion to La Liga in 2016. Borges remained with the club until 2018, making over 100 appearances and scoring 10 goals.