In a match which had to be suspended for nearly 15 minutes because of rain, Napoli almost saw its Serie A title hopes washed away.
Napoli fought back from a goal down and needed a late own goal to win at Genoa 2-1 on Saturday and keep within sight of leader Juventus.
Carlo Ancelotti’s side cut the gap to three points to Juventus, which visits AC Milan on Sunday.
Inter Milan can move back level on points with a win at Atalanta, also on Sunday.
Genoa was the only team to have taken points off Juventus in Serie A but came into the match having lost at Inter 5-0 last weekend.
Lorenzo Insigne hit the post for Napoli early on but it was Genoa which took a surprise lead in the 20th minute when Christian Kouame headed in Romulo’s cross.
It was raining heavily in Genoa and the match was halted in the 59th minute for about 13 minutes until the rain stopped and the pitch could be partly drained.
Napoli leveled shortly after play resumed, thanks to its two halftime substitutes. Mertens flicked on Allan’s pass for Fabian Ruiz to slot past Ionut Radu.
And Napoli completed its comeback four minutes from time when Genoa defender Davide Biraschi deflected Mario Rui’s free kick into his own net.
Source: The Associated Press