Sergio Hernán Ubillús Segura (born 1 January 1980) is a Peruvian footballer who plays as a left back for Cobresol in the Torneo Descentralizado.
Club career Sergio Ubillús began his senior career in the Torneo Descentralizado with Universitario de Deportes in the 2000 season playing under manager Roberto Challe. He stayed with Universitario only until the next season.
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