Dias has attracted the attention of Europe's leading clubs, with Nottingham Forest and Brentford of the Premier League also said to be showing interest in the young Brazilian centre-back's progress.
The left-footed defender was called up to the Brazil national team for the first time by Carlo Ancelotti ahead of the upcoming international fixtures against Australia and India, a significant milestone in his young career.
Dias was promoted to Athletico Paranaense's first team in 2025 and has since become a regular starter, making 49 appearances for the club to date despite his age, establishing himself as one of the most promising young defenders in Brazilian football.
The exceptional talent's contract with Athletico runs until 2028, giving the Brazilian club considerable leverage in any future negotiations with interested European suitors circling the teenager.
Tottenham had a summer offer for the defender turned down by Athletico, who are said to value him considerably higher than the bid submitted, with his growing international recognition likely to push that valuation up further in the months ahead of any renewed approach.
His call-up to the senior Brazil squad is expected to increase competition for his signature even further, with several of Europe's top clubs now closely monitoring his progress at both club and international level as the transfer saga develops.
Dias previously won the South American Under-20 Championship with Brazil, and is regarded by many scouts as one of the standout defensive prospects to emerge from the Brazilian league in recent years, with his versatility on the ball also drawing praise.