Sulley has been training with the reserve side and head coach Juan Manuel RodrÃguez will determine if he remains at the club.
The 24-year-old was available for a free transfer after terminating his contract with Romanian side FC Steaua Bucuresti last season.
Last month, he trailed out at Polish side Legia Warsaw two-weeks but was refused a deal.
The former Liberty Professionals youth team player was said to have failed to impress officials of the side.
Muniru is the younger brother of former AC Milan and Inter star Sulley Muntari.
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