Beşiktaş, Olympiacos, West Ham, and teams from the Gulf submitted offers of approximately €12,000,000 for 24-year-old Brazilian defensive midfielder Matheus Martinelli. Fluminense rejected all of these proposals, as the club values the player at a minimum of €20,000,000. Martinelli is under contract until 2027, and Fluminense is seeking to extend his deal until 2030. According to Transfermarkt, his market value is €14.00m. For the 2025/2026 season, he has made 3 appearances and 1 assist in the Campeonato Carioca, and 1 appearance in Série A.