What happened?

Holstein Kiel will miss Lasse Rosenboom at the start of the 2. Bundesliga season. The 24‑year‑old centre‑back suffered a syndesmosis ligament tear during training and will miss both preparation and the opening match in early August. Surgery is scheduled for the coming week. Rosenboom featured in 30 of 34 games last season and was a key performer.

How does this affect squad planning?

Coach Ole Werner's staff now faces the task of reshuffling the defence. Without Rosenboom, the side must lean more on young talents from the U23 squad or utilise the versatility of midfielder Marvin Schäfer, who has been used as an emergency cover. The winter‑transfer strategy may tighten as the back line now has a larger gap.

Why is Rosenboom so important?

Rosenboom provided not only stability but also good ball distribution from the back. His duel success rate was 78 % and he scored three goals, a rare figure for a defender. In a defence that already concedes 48 goals, the loss of a player who reads the game and cuts out attacks early is felt keenly.

What does this mean for the current league position?

Holstein Kiel currently sits 12th in the 2. Bundesliga with 41 points from 34 matches (11 wins, 8 draws, 15 losses). The last result was a narrow 2‑1 defeat to Dynamo Dresden on 17 May 2026. Recent form is bleak: five straight losses (LLLLL). The club is 29 points behind leaders FC Schalke 04 and has scored 44 goals while conceding 48, a minus‑four goal difference. All this raises pressure to find a quick replacement and shore up the defence.

What comes next?

Rosenboom’s surgery should keep him out until mid‑September. In the meantime Holstein Kiel will rely on captain Jens Hansen’s leadership and the versatility of midfielder Luca Müller. The upcoming fixtures against promotion hopeful SV Wehen Wiesbaden and table‑contender Eintracht Braunschweig will reveal whether the team can bridge the gap before Rosenboom returns.