"Julian is not ready to play for Real Madrid. He's still got a lot to learn," Tuchel said.
Real Madrid are leading the chase for AIK Solna forward Alexander Isak -- dubbed by the media as the new Zlatan Ibrahimovic.
France coach Didier Deschamps believes Atletico Madrid forward Antoine Griezmann could win the Ballon d'Or when the prize is awarded on Monday.
The usual refrain against La Liga is that it's boring and predictable. This season has been anything but, as Sid Lowe explains.
Zinedine Zidane has urged his Real Madrid players to maintain their focus despite holding a six-point advantage at the top of the La Liga standings.