Key Takeaways
- Frederik Rønnow will miss the final three matches of the 2025-26 Bundesliga season with a calf muscle injury.
- Backup goalkeeper Carl Klaus is set to start after making his league debut for the club against RB Leipzig.
- The injury blow comes as Union Berlin hold only a six-point cushion above the relegation play-off zone.
1.FC Union Berlin must complete their campaign without first-choice goalkeeper Frederik Rønnow. The Köpenick club announced on Monday evening that the Danish shot-stopper has suffered a muscle injury that will keep him out for the remainder of the season.
The 33-year-old picked up the problem during Friday’s 3-1 defeat away to RB Leipzig. He went down clutching his calf immediately after taking a goal kick in the 29th minute. Two minutes later, he signalled to the bench that he could not continue.
Reserve goalkeeper Carl Klaus replaced Rønnow between the posts. This marked his first-ever Bundesliga appearance for the club. Klaus now looks certain to retain his place for the final three matches against 1.FC Köln, Mainz 05, and FC Augsburg.
The timing could not be worse for the Berlin side. They currently sit just six points clear of FC St. Pauli, who occupy the relegation play-off position. Rønnow has been a key figure in their survival fight, keeping five clean sheets and making 78 saves in 30 top-flight appearances this term.