Bologna will be without centre-forward Mattia Destro for approximately a month after his latest knee injury.
The striker suffered another knock to the knee during the game against Roma and it was not healing as rapidly as first expected.
According to Il Resto del Carlino newspaper, tests showed there were no lesions to the ligaments, but it is still enough of a strain to keep him out for around four weeks.
The 28-year-old has made four Serie A appearances this season, plus one Coppa Italia game, but is yet to score a goal.
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