Guillermo Cubillos is a Chilean defender who offers versatility on the right flank, capable of playing as a full-back or pushing into a midfield role, currently with San Marcos de Arica. The 31-year-old has built a steady career characterized by adaptability and defensive diligence. Cubillos started his professional journey at Universidad de Chile, coming through their famed youth system before seeking regular playing time elsewhere. He has since represented clubs like Deportes Copiapó and San Luis de Quillota, where his energetic runs and crossing ability from the right side became a feature of his game. While his career has been spent largely in Chile's Primera B and Primera División, he has been a consistent performer, known for his work rate and commitment. Team honors have been limited, but he has been a key part of squads fighting for promotion and maintaining top-flight status. Off the pitch, Cubillos is known as a dedicated professional. His style is defined by endurance and a willingness to contribute in both defensive and offensive phases, making him a useful and dependable squad player for his club.