VfB Stuttgart have signed German Under-21 international Josha Vagnoman from second-tier SV Hamburg, the Bundesliga club said on Saturday. Stuttgart said that the 21-year-old full back has a contract until 2026 and has joined his new team for a pre-season training camp in Bavaria. The transfer fee has been estimated at around €4 million ($4.06 million) and could reach €4.5 million with add-ons. Stuttgart sports director Sven Mislintat named Vagnoman “one of the most interesting players in his age group in Germany.” Vagnoman said: “I am delighted that the transfer worked out. I want to find my p…