Bologna will be without striker Rodrigo Palacio for three to four weeks with a thigh strain.
The veteran forward sustained the injury in training and a statement was released by the club medical staff.
Palacio has been diagnosed with a lesion to the back of the left thigh.
He is expected to be out of action for three to four weeks.
The 36-year-old former Genoa and Inter hitman has scored four goals with two assists in 19 Serie A appearances this season.
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