Dortmund reportedly make €20m offer for talented Mainz defender

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Bulinews

·31 mai 2026

Rumours from Poland indicate that Borussia Dortmund has already submitted a concrete offer to Mainz for Kacper Potulski.

According to a report by 'Przeglad Sportowy Onet', the Westphalian giants have produced a bid of €20million for the centre-half.

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Mainz has reportedly rejected this offer and is demanding a higher sum for the defensive talent who has just been called up by Poland.

Potulski – who is contracted with Mainz until 2028 – joined the club from Legia Warsaw's youth academy in the summer of 2023.

While his deal reportedly does not include a release clause, Bayer Leverkusen are also among the clubs said to be keen on him.

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