Napoli ends losing streak; Inter beaten again in Serie A
Roma also won against a lowly opponent, beating Palermo to reclaim second place from AC Milan.
It was Gabbiadini's first red card in 153 career Serie A matches.
Ferrari was shown a yellow.
Both of Napoli's goals were aided by poor defense.
Maksimovic also scored near the far post, following a corner.
Napoli is fourth, four points behind Juventus and two behind Roma and Milan, which beat Juve 1–0 on Saturday.
Promoted to the top division for the first time in its 106-year history, Crotone played its first three home matches 600 kilometers (375 miles) away in Pescara while its Ezio Scida stadium was expanded to meet league regulations.
The Calabrian club remained with one point.
"We did well in a situation that could have been very difficult, because Crotone was playing at home for the first time, the pitch wasn't worthy of a professional match and we were down to 10 men after a half-hour," Napoli manager Maurizio Sarri said. "I'm happy that the lads will rediscover some confidence."
Here's a look at the rest of the action in the Italian league Sunday:
Roma 4, Palermo 1
Mohamed Salah scored from a tight angle shortly after the half-hour mark after being set up by Edin Dzeko.
Leandro Paredes made it 2-0 in the 51st with a free kick that surprised Palermo goalkeeper Josip Posavec.
Dzeko added another in the 68th, finishing off a pretty series of passes with a low shot from the edge of the area for his league-best eighth of the season—the same number of goals he scored in his 31 appearances last season.
Robin Quaison pulled one back for Palermo in the 80th but Stephan El Shaarawy quickly restored Roma's three-goal advantage.
Atalanta 2, Inter Milan 1
"The only thing we can do is work hard to get out of this situation," De Boer said. "I want to see the squad have more courage with the ball. ... It's a tough time for everyone."
Atalanta, which extended its unbeaten streak to four matches, moved up to eighth while Inter dropped to 14th.
Torino 2, Lazio 2
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