Heidenheim has entered the competition to acquire central defender Adam Obert, who delivered an impressive performance in Serie A with Cagliari last season. The Slovakian star, who made 21 appearances, played a crucial role in Cagliari's successful bid to remain in Italy's top league. Heidenheim has reportedly inquired about the availability of the 22-year-old, whom Cagliari values at £6 million. The Bundesliga club, which competed against Hearts in the Conference League last season, is interested in the Slovakian player, who is under contract with Cagliari until 2029. Transfermarkt indicates that his market value stands at €3.00m, and he has also attracted interest from Antwerp and Celtic.