In Serie A on Monday, lowly Sampdoria held second-placed Inter Milan to a 0-0 stalemate, leaving Simone Inzaghi's team to regret a number of squandered opportunities on a foggy Genoa night.
After 22 games, Napoli is in first place by 15 points, Inter is second with 44, Atalanta, AS Roma, and AC Milan are all in third with 41.
Sampdoria survived attack after assault despite Inter dominating the first half owing to shrewd defending and a fair bit of luck.
As the clock approached 90 minutes, the visitors began to become increasingly irritated yet were sloppy in their build-up, allowing Sampdoria opportunity to break up the play.
Two minutes into extra time, Inter's Francesco Acerbi almost scored the winning goal, but Samp goalie Emil Audero stopped him.
The draw put Sampdoria in second-last place with 11 points, eight points below the safety zone.
