Werder Bremen are set to exercise their purchase option for Arsenal goalkeeper Karl Hein, according to Deichstube. The Bundesliga club will reportedly pay around €3 million to secure the 24-year-old on a permanent transfer.
Hein joined Werder Bremen on loan during the 2025/26 season and made two appearances for the club, reportedly impressing the coaching staff when called upon. The move signifies Bremen’s confidence in the Estonian international, suggesting he will be installed as their first-choice goalkeeper going forward. Hein previously progressed through Arsenal’s academy, making a handful of senior appearances for the Gunners, primarily in cup competitions.
The anticipated arrival of Hein on a permanent basis has implications for Werder Bremen’s current number one, Mio Backhaus. The club now appears likely to sell the 22-year-old goalkeeper, with a potential transfer fee of around €15 million being discussed. Backhaus has attracted interest from several clubs, though specific suitors have not yet been named.
Backhaus established himself as Werder Bremen’s starting goalkeeper over the past two seasons, playing a key role in their Bundesliga campaigns. However, the club’s decision to pursue Hein suggests they believe the Arsenal loanee offers a long-term solution in goal. The sale of Backhaus would also generate significant funds for Werder Bremen, potentially allowing them to strengthen other areas of the squad.
This transfer represents a positive outcome for all parties involved. Hein gains the opportunity to establish himself as a regular starter in a top-flight league, while Arsenal recoup a fee for a player who was unlikely to break into their first team. Werder Bremen secure a promising goalkeeper and generate funds through the sale of Backhaus, allowing them to continue their squad building process.
