Thomas Tuchel is playing Hakim Ziyech out of position, according to Frank Leboeuf, who says the Chelsea star is a "copy-cat" of Manchester City's Riyad Mahrez.
Ziyech was handed only his 14th Premier League start for Chelsea as they picked up a 2-0 west London derby victory over Fulham at Stamford Bridge on Saturday.
The Blues were good value for their victory, but Ziyech was largely ineffective in a No.10 role and made way for N'Golo Kante just after the hour mark, leaving Leboeuf concerned that his talents are not being properly utilised.