Johan Karlsson, a 25-year-old Swedish right-back, is a new player at Vejle Boldklub following his presentation. He joins from Malmö FF, where he played since January 2025 and made 9 appearances in the Allsvenskan during the 2025/2026 season. Karlsson has stated it was important for him to join a club that really wanted him and where he could contribute with his qualities. The defender has one cap for Sweden. His current market value is €450k, according to Transfermarkt. At Vejle Boldklub, Johan Karlsson will wear shirt number 23.