Borussia Dortmund boss Peter Bosz has commended Tottenham Hotspur's summer-signing Davinson Sanchez on his durability.

Bosz managed Sanchez at Ajax last season before he departed for the Bundesliga club in the summer. The 21-year-old, who joined Spurs in a club-record £42m deal, is expected to start against Dortmund in Wednesday's Champions League clash.

"He is a good player even though he is still young," Bosz said. "What surprised me was that he played the final of the Copa Libertadores, which he won, and without any vacation he came to us and after one week he played the whole season, never injured and always working hard in training.

"I think he became a better player, especially with the ball. Without the ball he is a monster - strong in the air, fast - but with the ball at Ajax, we had a certain way of playing and he adapted."