Werder Bremen plans to sign Florian Kastenmeier as a rival to Estonian goalkeeper Karl Hein. The 28-year-old Kastenmeier will be a free agent after Fortuna Düsseldorf's relegation to the 3. Liga. Bremen's coach Daniel Thioune was the one who promoted Kastenmeier as captain during his time in Düsseldorf. Kastenmeier has only played in the Bundesliga during the 2019/20 season. Werder Bremen bid farewell to Mio Backhaus, who joined Freiburg for a reported €12 million transfer fee. According to Sky, Karl Hein will be expected to be the starting goalkeeper, similar to the move that promoted Backhaus after Michael Zetterer joined Eintracht Frankfurt. Kastenmeier is initially planned to be the deputy for the Estonian goalkeeper. The previous link between Thioune and Kastenmeier could be key during the discussions, despite interest from other clubs for the free agent.