Jaime Sierra

Jaime Sierra Mateos (born 18 March 1998) is a Spanish footballer who plays as a central midfielder for Belgian club Deinze.

Club career
Born in Madrid, Sierra joined Real Madrid's youth setup in 2004, from EF Carabanchel. In July 2014, he moved to Valencia CF, being assigned to the Juvenil squad.

In August 2017, free agent Sierra moved to CD Leganés, being assigned to the reserves in Tercera División. He made his senior debut late in the month, coming on as a second-half substitute in a 3–2 away win against AD Alcorcón B.

Sierra made his first team – and La Liga – debut on 28 January 2018, replacing José Naranjo in a 3–2 home win against RCD Espanyol.

On 1 February 2024, Sierra signed with Deinze in Belgium.