Arsenal U23 coach Freddie Ljungberg has no doubts Hoffenheim will be good for Reiss Nelson.
Nelson is on a season-long loan at TSG.
Ljungberg told the London Evening Standard: "You mature as a human being by going abroad. I went to England as a 20-year-old and learned a lot.
“It's not that easy, learning a new language and stuff like that. That will help them on a personal level.
“But of course in Reiss' case if he can play in the Bundesliga against men at that level that will get him more experience to get closer to the Arsenal first team. It's a great pathway to go."