A returning Giorgio Chiellini helped Juventus maintain their six-point lead at the top of Serie A after negotiating a major title hurdle in a feisty 1-1 draw at second-placed Napoli on Saturday.
Italy defender Chiellini opened the scoring 10 minutes into his first start since suffering a calf injury in December, only to see it cancelled out by Gokhan Inler's deflected long-range strike two minutes from halftime.
The draw means champions Juve move up to 59 points with 11 games left while Napoli have now drawn four games in a row.
Home striker Edinson Cavani, who has not scored in six games, was lucky to escape a red card for an apparent elbow on Chiellini late in the first half but could be punished by Serie A on video review next week.
Chiellini sparked the incident, in a high-pressure game where Napoli fans had pelted the Juve team bus with stones before kickoff, by pulling the Uruguayan's hair.
"I think we shown how much we want to win the league this year," Chiellini told Sky Sports Italia.
"We're happy with our performance and it's a shame that we didn't win as we hoped to, but it was the right result.
"It [my calf] still hurts. I have to thank the medical staff. We've worked into the night every day and even at home. "I'm happy to have helped the team today, even if I know that I have to improve physically."
Following the clash between Chiellini and Cavani, referee Daniele Orsato decided to book the pair after consulting his goal-line official.
"You can see what happened from the video, but at the end of the day it's right that we have a good go at each other and the referee decides. After the match it's all over," Chiellini added.
The 28-year-old had Andrea Pirlo to thank for his goal after he powerfully headed in a pearl of a cross from his Italy and club team mate.
Walter Mazzarri's side reacted well to going behind and pushed Juve back but struggled to create clearcut chances against a defence well-marshaled by Chiellini.
Juve were dangerous on the break and Mirko Vucinic should have twice extended their lead soon after the opener.
First he headed narrowly wide after another great cross, this time from Arturo Vidal, and then he shot straight at Morgan De Sanctis when put clean through on goal again by the Chilean.
Juve paid for their wastefulness when Inler's effort was deflected by Leonardo Bonucci's head over Gianluigi Buffon And into the net.
Napoli had the better of the play in the second half but were restricted to shooting from range.
Marek Hamsik twice forced smart saves from Buffon, first in the 58th minute and then 15 minutes later when substitute Blerim Dzemaili missed the best chance of the night from the rebound - somehow shooting wide of an open goal.
Napoli's hopes of a first Serie A title since the days of Diego Maradona in 1990 are starting to look increasing slim and third-placed Lazio could close the gap on them to three points if they win at AC Milan, in fourth, on Saturday.
The rest of the Serie A programme follows on Sunday.