Atletico Madrid are monitoring Rayo Vallecano right-back Andrei Ratiu, according to Marca.
Ratiu, 26, joined Rayo from SD Huesca in the summer of 2023 and has a contract through June 2028.
The Romania international has put in some solid performances for Rayo this season and was a target of Atalanta, Brighton, Brentford and Genoa in the last transfer window.
But any deal will be slightly more complex as LaLiga side Villarreal own 50% of the player's sporting rights.
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