ACQUIRED: Loaned from Herediano on 8.10.2017
Leitón made a tremendous impact for Herediano in the Campeonato de Verano 2017 (Summer Championship), helping the squad to its 26th title with his pace, creativity and ability to unbalance opposing defenses. He then made his senior national team debut in the semifinals of the Gold Cup on July 22, coming off the bench for Costa Rica in a 2-0 loss to the United States.
Leitón made his professional debut with Club Sport Uruguay in 2012. Barring a short stint with Puntarenas in 2015, he remained with the team until signing for Herediano in May 2016. In his first tournament with the club, the Campeonato de Invierno 2016 (Winter Tournament), his side finished second in the regular-season and playoff standings to Deportivo Saprissa.
2017: Made MLS and MNUFC debut as a second-half sub on September 9 vs PHI
INTERNATIONAL: Made his international debut in the 2017 Gold Cup semifinal as a second-half substitute in a 2-0 loss to the United States.