Iván Casquero Cosío

Iván Casquero Cosío (born 14 July 1979) is a Spanish former footballer who played as a left back.

Playing career Born in Gijón, Asturias, Casquero played youth football at Real Oviedo. On 26 May 1996, while still a junior, he made his first and only appearance in La Liga, coming on as a late substitute for Thomas Christiansen in a 3–1 away loss against CP Mérida.

In the 2000–01 and 2001–02 seasons, Casquero played a combined 26 matches in Segunda División matches for SD Eibar and CD Numancia. He all but competed in Segunda División B until his retirement at the age of 32, representing mainly Cultural y Deportiva Leonesa.

Coaching career Casquero returned to Oviedo after retiring, and worked at the club as youth physio and assistant coach to their reserves.