Mapi León made history in 2017 with her 50,000 transfer to FC Barcelona, marking the first paid transfer in Spanish women’s football. Prior to this landmark move, León had already established herself as a formidable defender, debuting in the Primera División at just 16 with Prainsa Zaragoza. She helped Zaragoza reach the Copa de la Reina final in 2013 before moving to RCD Espanyol that same year, where she secured her first senior trophy, the Copa Catalunya. In 2014, León joined Atlético Madrid, where she seamlessly transitioned from a left-back to a central defender under coach Ángel Villacampa, achieving her first league title in the 201617 season and winning the Copa de la Reina in 2016.
Her ongoing commitment to FC Barcelona was reaffirmed with a contract extension through 2026.