Bayer 04 Leverkusen has set its sights on Kacper Potulski, one of the most exciting defensive talents in the Bundesliga. The 18-year-old center-back from Mainz 05 is considered a great prospect. According to reports, the Werkself has already thoroughly informed itself about the 18-year-old center-back. There has even been a meeting. National team debut as a door opener for Kacper Potulski This has already brought the defender into the focus of the Bundesliga elite. The right-footed player is considered one of the greatest defensive talents at Bruchweg. Impressive: The Pole scored his debut goal in the Bundesliga top flight in December 2025 against FC Bayern with a header. No wonder that the interest in the defensive talent has already gone far beyond that in Leverkusen. According to reports, Newcastle United, Chelsea FC, Brighton & Hove Albion, and Brentford from the Premier League are also observing the Mainzer. From Italy, AC Milan, Inter Milan, and Como 1907 are also being traded as interested parties. Borussia Dortmund has also had the defensive specialist on its radar, but apparently only as an alternative for Joane Gadou, who the black and yellows have already signed from RB Salzburg for 19.5 million euros. The 18-year-old also made his debut for the Polish national team in May, which has drawn additional attention. Additionally, there has been a change in his agent, a step that is often seen in the industry as a signal that the next career step is being seriously explored. The contract of the center-back in Mainz still runs until 2028. There is no exit clause according to information from Sky, so the transfer fee would be freely negotiable. Given the growing list of interested parties, the Potulski case is likely to gain momentum in the coming weeks.