According to a report from Bild on the transfer history of Linus Güther, the player transferred from Energie Cottbus to Union Berlin in the summer of 2025. The report states that Bayern Munich and Borussia Dortmund were involved for a long time and attempted to make higher offers than one another, while Leverkusen, Frankfurt, Gladbach, and Hertha were no longer competing for the player. Union Berlin's youth chief scout, Tom Lohmann, had been observing Linus Güther since the player was 12 years old and maintained close contact with Güther's father, Kai Noack, including after the player moved from Spremberger SV to Energie Cottbus in the summer of 2022. The transfer received support from Lutz Munack, the managing director for youth and amateur football. In 2025, following over three years of observation, a distinct career plan was presented to Güther which included starting with the U17s, moving to the U19s as quickly as possible, and subsequently joining the professional team.

FC Bayern, Borussia Dortmund, and Eintracht Frankfurt were interested in signing Linus Güther, who played for Energie Cottbus prior to the season. He opted to join Union Berlin in order to stay close to his home.

Bild has reported on the contentious transfer of Linus Güther from Energie Cottbus to Union Berlin. The 15-year-old midfield talent, Linus Güther, has moved from Energie Cottbus to Union Berlin, sparking controversy. Energie Cottbus alleges that a valid contract had been signed by the player's parents, and they are contemplating legal action for breach of contract. It is reported that the contract is missing Güther's own signature and a date, which complicates its enforceability. Legal expert Tino Sieland commented that although a parent's signature is generally valid, the absence of these elements could pose issues. If the contract is considered valid, Cottbus might seek compensation for their investment in Güther's development. An out-of-court settlement is suggested as a possible resolution.

Union Berlin has secured the services of Linus Güther, a 15-year-old youth national player, for their youth team. Meanwhile, Energie Cottbus asserts that they have a legally binding agreement with Güther until 2028, which was signed by his parents. The situation is likely to be settled in court. Despite the ongoing dispute, Güther was registered as a contract player for Union Berlin by the Berliner Football Association on July 1, 2025. Energie Cottbus is determined to pursue legal action to uphold their contract. Reports suggest that several clubs showed interest in Güther, who has demonstrated promising talent by scoring several goals for the U15 German national team. The controversy emerged as Energie Cottbus maintains that there is a signed agreement with Güther's parents, claiming it constitutes a clear legal contract. Cottbus's president, Sebastian Lemke, highlighted the legal clarity of their agreement, although it was noted that some signatures and dates were missing. Union Berlin, on the other hand, remains calm, having successfully registered Güther, and has not made any public comments on the ongoing legal proceedings. Cottbus has enlisted a prominent sports and labor lawyer to investigate their legal options, aiming to resolve the matter in court.