Alejandro Marcos López (born 29 February 2000) is a Spanish footballer who plays as a central defender for Badalona Futur.
[1] On 5 October 2020, after finishing his formation, Marcos signed a two-year contract with CD Castellón in Segunda División.
[2] He made his senior debut the following 6 January, coming on as a second-half substitute for Adrián Lapeña in a 0–2 home loss against CD Tenerife, for the season's Copa del Rey.
[3] On 20 January 2021, Marcos was loaned to Segunda División B side UE Llagostera for the remainder of the season.
[4] Upon returning, he was mainly a backup option during the 2021–22 Primera División RFEF and subsequently left Castellón in June 2022.