**Manchester United have completed the signing of highly-rated youngster Karim Cassim following his departure from Manchester City.**
The 17-year-old midfielder has made the move across Manchester after leaving City, where he was part of the side that lifted the FA Youth Cup last season.
Cassim is regarded as an exciting prospect and has also represented England at youth level, earning caps up to Under-17 level.
The central midfielder will now continue his development at United as the club add another promising young talent to their academy ranks.
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