Inter Milan edged closer to their first Scudetto since 2010 with a 1-1 draw at Spezia that took them 10 points clear at the top of Serie A.
Diego Farias' early goal put the hosts in front but Ivan Perisic levelled for Antonio Conte's side.
Earlier on Wednesday, AC Milan's hopes of catching their city rivals were dented by a 2-1 home loss to Sassuolo.
Meanwhile, Juventus came from behind to beat struggling Parma 3-1 and boost their hopes of a top-four finish.
A double from full-back Alex Sandro helped Andrea Pirlo's side recover after Gaston Brugman's opener before Matthijs de Ligt rounded off the scoring.
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