Arsenal confirmed on Thursday that goalkeeper Karl Hein will complete a permanent move to Bundesliga side Werder Bremen in July 2026.
Hein, 24, who spent the 2025/26 campaign on loan with Werder Bremen, made two Bundesliga appearances during that spell before suffering a hand injury in training in March that required surgery and ruled him out for the remainder of the season.
The transfer brings to an end an Arsenal goalkeeper transfer exit that had been building for several seasons. Hein joined Arsenal from Nomme United in June 2018 and signed his first professional contract with the club the following year. He made his first‑team debut for Arsenal in November 2022 against Brighton & Hove Albion in the Carabao Cup third round at Emirates Stadium.
Arsenal paid tribute to Hein in their announcement: "We thank Karl for his contribution to the club during his time with us and wish him all the best for his next chapter with Werder Bremen." The club also moved earlier in the month to sanction Jakub Kiwior's permanent departure to Porto, reshaping the fringe of their squad.
Werder Bremen, which said Hein is "set to become the club’s new first-choice goalkeeper," moved to make the deal permanent after his loan. Sporting director Clemens Fritz added: "Karl already showed last season that he is a goalkeeper of the highest quality. We’re therefore delighted to head into the new campaign with a strong number one between the posts."
Hein framed the transfer as the next step in his career. "I’m delighted to be staying in Bremen for longer. Werder is one of the Bundesliga’s biggest clubs with a rich history. I felt at home in the city of Bremen and at SVW from day one, and I’m delighted to be able to continue being part of this institution," he said.
The permanent move is linked to wider business at Werder. Mio Backhaus will leave Bremen to join SC Freiburg in the summer, a switch that leaves a vacancy between the posts that Hein is expected to fill. That dynamic helped push the negotiations toward a permanent transfer.
Hein’s path to a regular first‑team role has been a steady build rather than a sudden arrival. After joining Arsenal from Nomme United in 2018 and turning professional the following year, he spent time on loan at Reading in the 2021/22 season. Last season he was on loan at Real Valladolid, where he made 32 appearances in all competitions, before returning to Germany for the 2025/26 campaign.
Those loan spells underlined why Hein has sought a move away from Arsenal: meaningful senior opportunities were limited at the club. Despite his early promise and the Carabao Cup appearance in 2022, regular starts for Arsenal never materialised, and he headed to the continent to establish himself as a first‑choice keeper.
The friction in the transfer is straightforward. Bremen and Hein are mutually optimistic, but the player arrives having played only twice in the Bundesliga and coming off hand surgery in March. That combination — limited top‑flight minutes and recent surgery — is the sharpest question hanging over the move.
The most consequential unanswered question now is whether Hein can recover fully and quickly enough from his hand operation to seize the starting role Bremen have promised. If he does, the move will mark a clear career reset; if not, Bremen may face the difficult task of finding a reliable alternative before the new campaign begins in earnest.
