Fellaini could make his Champions League debut tonight against Bayer Leverkusen.
"Out of Fellaini and Ozil you would really want Ozil to be your playmaker," Sheringham told Absolute Radio's Ian Wright on the former Arsenal striker's Rock 'N' Roll Football Show.
"It makes you think, 'where is Fellaini going to play?' If you spend 28 million on someone you'd expect them to be playing."
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