Chelsea legend Marcel Desailly still wants to see more from winger Hakim Ziyech.
The Moroccan helped Chelsea to a 3-0 aggregate success over Atletico Madrid in the Champions League round of 16.
Ziyech got the first goal of the game, thanks to an excellent Timo Werner pass.
However, Desailly wants to see more from the winger, and believes he can make several improvements to his game.
"When you look at the performance of Ziyech, I really don't think his performance was magnificent," Desailly told beIN Sports.
"He missed a lot of crosses. He wasn't very effective in dribbling.
"But the collective and the spirit brought Chelsea collectively to a different level, in possession of the ball and how they played."
