Reflecting on his time at Dortmund, Sancho expressed his pleasure at being back in Germany but remained uncertain about his future.
"Obviously, I came here at 17, and they gave me the opportunity to play professional football, so I'm just delighted with all staff and players that welcome me back," he said.
When former goalkeeper Peter Schmeichel, further pressed on his future, Sancho replied, "Who me? I really don't know. I'm just focused on the present right now."