Atalanta twice came from behind to snatch a late 2-2 draw against SSC Napoli at the San Paolo Stadium to maintain their lead over Carlo Ancelotti's side and remain third in Serie A.
The home side's early pressure eventually paid off after 16 minutes, with Nikola Maskimovic rising highest to nod home Jose Callejon's pinpoint cross, as Napoli took a deserved lead.
Atalanta are no pushovers, however, and their threat on the counter attack persisted until three minutes before half-time when Alex Meret allowed Remo Freuler's effort to squeeze underneath him to level matters.
Tactical discipline was key to the second period, as both managers aimed to tighten up at the back and use their nouse and creative players to unpick the opposing defensive locks.