Chelsea manager Thomas Tuchel has been criticised for the way Morocco international Hakim Ziyech has been used this season.
Ziyech joined the Blues from Ajax in a deal reportedly worth £33.3million, but the Moroccan has not been able to live up to the hype.
Former Manchester United and Arsenal star Robin van Persie feels Tuchel is not allowing Ziyech to fully express himself.
"It is actually a shame that the creativity of players like Ziyech, Pulisic and Kovacic – who I think is a brilliant player – is not being expressed," He told De Telegraaf.
"Kovacic is their engine and playmaker. Ziyech also has those qualities higher up the pitch, but he should have a much bigger role in the team.
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"He is now constantly searching [for a place in the team], being played in all different positions.
"But surely it can’t be that difficult to give such a creative player a good position, right?
"You can also see it differently, first give Ziyech and Kovacic an important role and then let players like [N'Golo] Kante and other types work around them."