Thomas Tuchel admits he takes full responsibility for making Hakim Ziyech "suffer" on the sidelines since he arrived at Chelsea.Ziyech moved to Stamford Bridge in a £36million switch from Ajax last summer and initially hit the ground running, registering three goals and as many assists in his first three starts for the Blues.However, a hamstring injury sustained against Leeds in December brought the winger's momentum crashing to a halt, and he has been unable to get back to his best ever since.Frank Lampard, the head coach who brought him to Chelsea, was then sacked in January and replaced by Tuchel.Ziyech started Tuchel's first outing at home to Wolves on January 27, but since then he has failed to make an appearance in the Premier.
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