Mario Maroto Argüello (born 28 November 2003) is a Spanish footballer who plays as a midfielder for Real Valladolid.
Born in Valladolid, Castile and León, Maroto joined Real Valladolid's youth sides from CD Villa de Simancas. On 24 November 2020, he extended his contract with the former until 2024.
Maroto made his senior debut with the reserves on 30 January 2021, coming on as a late substitute for Oriol Rey in a 3âÂÂ1 Segunda División B away win over CD Covadonga. He scored his first senior goal on 19 March 2023, netting the B's third in a 3âÂÂ3 Segunda Federación home draw against CD Palencia Cristo Atlético.
On 31 August 2023, Maroto was loaned to Primera Federación side Atlético Madrid B for the season. Upon returning, he was assigned back at the B-team before making his professional â and La Liga â debut on 27 September 2024, replacing fellow youth graduate David Torres in a 2âÂÂ1 home loss to RCD Mallorca.