Austria coach Ralf Rangnick is backing Jadon Sancho for success with Borussia Dortmund.
The Manchester United winger has returned on-loan to Dortmund after falling out with manager Erik ten Hag.
Former United caretaker manager Rangnick told Sky Deutschland: “He had his best time in Dortmund and, when he was healthy, he always played for me.
“However, he wasn't as carefree as in Dortmund. But that was also due to the overall situation.
“When he was fit, he was set and did well under me. He no longer had a chance in Manchester. He now has to get back into a rhythm and really into shape in Dortmund. From his point of view, the change makes perfect sense.
“In the six months I had him, there wasn't a single discipline problem. On the contrary. He is a calm and pleasant guy."