According to Scott Burns, Metz was one of several clubs interested in signing 26-year-old Scottish centre-back Stephen Welsh this summer. Burns stated that the player also attracted attention from other Championship clubs, Major League Soccer, and two or three teams in the Scottish Premiership. Welsh has been capped 10 times for Scotland at the U21 level. He joined Celtic in July 2020 and his contract runs until May 2027. In the 2025/2026 Scottish Premiership season, he made 24 appearances, scoring one goal. His current market value is €2.00m.