Miguel ÃÂngel Sierra Ortega (born 14 July 2004) is a Spanish professional footballer who plays as a left winger for Primera Federación club Sevilla Atlético.
Born in Granada, Andalusia, Sierra joined Granada CF's youth sides in January 2022, after representing CF Reino de Granada and UD Estrellas Chana Barrio. He made his senior debut with the former's affiliate side FC Cubillas de Albolote in the División de Honor Andaluza in March 2023, but joined Segunda Federación side Real Avilés Industrial CF on 10 July of that year, after finishing his formation.
On 7 August 2024, Sierra signed a two-year contract with Sevilla FC, being initially assigned to the reserves in Primera Federación. On 5 September 2024, he was called up to the first team by manager GarcÃÂa Pimienta for a period of trainings, as several players were out on international duty.
After establishing himself as a first-choice with the B's, Sierra made his professional â and La Liga â debut on 30 November 2025, coming on as a late substitute for Chidera Ejuke in a 2âÂÂ0 home loss to rivals Real Betis.