Bologna condemned their local rivals Sassuolo to a first home defeat of the season by winning 2-0 at the Mapei Stadium.The Neroverdi are in the race for Europe thanks largely to their resilience in Reggio Emilia but Emanuele Giaccherini's 68th-minute opener meant they risked losing at home for the first time.Their former striker Sergio Floccari - sold to Bologna two weeks ago - returned to confirm those fears by emerging from the bench to grab a second Rossoblu goal in the third minute of stoppage time.Sassuolo drop one place into seventh while resurgent Bologna climbed to 12th.