Acquired: Signed with Real Monarchs on December 3, 2020.
2020 Espanyol B (Spain): After six years with Chelsea, Quintero was transferred to RCD Espanyol where he competed with Espanyol B and appeared in 10 matches.
2017-2019 Chelsea (England): Quintero has an extensive resume that includes some of the largest clubs in Europe. The Ecuadorian midfielder spent his formative years at the historic La Masia, home to FC Barcelona’s vaunted youth academy, before moving to Chelsea as a late teenager. While in England Quintero competed with the youth academy and the reserve team in the Premier Reserve League.
While with Chelsea, Quintero went on loan to clubs in both Russia and Spain. In 2017 he was loaned out to FC Rostov and part-way through the year he was loaned to Betis Deportivo Balompié where he competed with the reserves squad. The following season Quintero remained in Spain with Club Lleida Esportiu in the third tier of professional football where he racked up 18 appearances.