Chievo Verona beat city rival Hellas Verona 1-0 amid controversy in a Serie A derby match Sunday.
Replays showed Alberto Paloschi was offside as he headed in Ervin Zukanovic's superb cross into the box with nine minutes remaining in the Derby della Scala.
Both sides also had penalty claims turned down.
Nene had gone closest for Verona when he headed a corner just over the crossbar, while Chievo's Ivan Radovanovic almost scored a wonder goal but Verona goalkeeper Francesco Benussi was alert to turn the effort from near the halfway line over his bar.
Sampdoria, Genoa and Lazio— which all have 26 points — play later and all three are vying to end the year in third spot with victory in the final round of fixtures before the winter break.