Mason Mount says Hakim Ziyech is "a joy to play with" and has hailed his new Chelsea team-mate as "world-class".
Chelsea reached an agreement to sign Ziyech for an initial fee of €40 million (£36m/$47m) from Ajax in January, and he joined up with Frank Lampard's squad at the end of the 2019-20 campaign.
Supporters were made to wait before seeing the 27-year-old in action as he struggled with fitness issues, but have been rewarded for their patience over the past week.
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Ziyech scored a fine individual goal on his first start for the Blues in a 4-0 Champions League win over Krasnodar on Wednesday, and retained a place in Lampard's line-up for a trip to Turf Moor three days later.