Ajax, Brighton and Hove Albion, and Hull City are competing to sign Marvin Keller, a Swiss goalkeeper from Young Boys. Hull City have held initial talks with the agent for the 23-year-old. Keller's contract in Switzerland runs until June 2028. He joined the club in February 2023, made 38 appearances in the Swiss Super League in the 2025/2026 season, and has one cap for the Switzerland national team. His current market value is €6.00m, according to Transfermarkt.