Bayer Leverkusen, BVB, and RB Leipzig are closely monitoring the development of 19-year-old Portuguese U21 international Flávio Gonçalves. The flexible offensive player, who also holds French citizenship, has a contract with Sporting Lissabon until 2030 that includes a 60 million euro release clause. FC Chelsea and Manchester United are planning to submit offers of around 50 million euros in the winter. In response, Sporting has reportedly started contract negotiations with Gonçalves to increase his release clause to 100 million euros. Gonçalves has 2 caps for the Portugal U21 team, and his current market value is estimated by Transfermarkt to be €15.00m.