Atalanta has asked for information regarding Lazio's 27-year-old Argentinian centre-forward Valentin Castellanos, as the club evaluates offensive alternatives. At present, these are only inquiries. The forward has also attracted interest from other clubs, with Flamengo reportedly prepared to offer around €22.5 million, a figure that does not convince Lazio's president Claudio Lotito, who values the player at approximately €40 million. River Plate is also monitoring the situation. Castellanos, who has two caps for Argentina, has scored two goals and provided three assists in nine Serie A appearances this season. His current market value is estimated by Transfermarkt to be €25.00m. Recent reports from December 2025 also mention that Lazio requested €30 million from interested Premier League clubs. Lazio originally signed the player from New York City in July 2023 for a reported fee of €15 million.