Carlos Tevez scored the only goal as Juventus beat Catania in a bad tempered affair which saw both coaches sent to the stands.
Antonio Conte's men overcame a spirited performance from the league's bottom club to continue their seemingly unstoppable march to a third consecutive Scudetto.
Their sixth consecutive league win was confirmed thanks to Tevez's angled drive - his 16th of the season - just before the hour mark, which restored Juve's 14-point lead over Roma.
Catania finished the game with 10 men after Gonzalo Bergessio was sent off after 67 minutes for a second yellow for elbowing Giorgio Chiellini.
Both coaches had earlier been sent from the touchline following an incident in which Bergessio avoided a second yellow earlier after appearing to catch Leonardo Bonucci with his arm.
Elsewhere on Sunday, Fiorentina enhanced their outside chance of securing Champions League spot by defeating third-place Napoli 1-0 at Stadio San Paolo.
Joaquin's free header two minutes from time secured the points against Rafa Benitez's side, who played more than half the game with 10 men after Faouzi Ghoulam's straight red card.
The victory ensured the Florence club are now seven points behind Napoli.
Milan avoided a fourth consecutive Serie A defeat by drawing 1-1 at Lazio but remain in the bottom half of Serie A.
They went ahead just before half-time when Kaka's cross was directed in by the unfortunate Anbdoulay Konko, but Lazio hit back through Alvaro Gonzalez's first goal of the season in the second half.
Mario Balotelli almost won it for Clarence Seedorf's side but saw his fierce shot cannon back off a post.
A brace from Giacomo Bonaventura, including a 90th minute winner, gave Atalanta a 2-1 win at Inter.
The 24-year-old put Atalanta ahead after 35 minutes only for Walter Mazzarri's men to equalise instantly through Mauro Icardi.
Inter hit the woodwork three times as they went in search of a winner and were hit with a sucker punch at the death when the unmarked Bonaventura's header condemned the home side to only their second home defeat in Serie A this season.
Parma are level on points with Inter but stay sixth after seeing their three-game winning run ended after a 1-1 draw with Genoa.
The visitors went in front through Isaac Cofie's goal on the break after 21 minutes but the lead only lasted 10 minutes as Ezequiel Schelotto's stunning strike ensure it was honours even.
Elsewhere, Bologna climbed out of the relegation zone after Lazaros Christodoulopoulos bagged a 78th minute penalty to secure a 1-0 win against Cagliari, and Udinese won by the same score against Sassuolo who remain deep in trouble.
Veteran Italian striker Antonio Di Natale made the difference after 26 minutes but missed a penalty 10 minutes later.
The visitors had a penalty of their own with 18 minutes remaining but Sergio Floccari's spot kick struck a post.
Sampdoria made it three wins in four with a 5-0 demolition of Verona. The game was as good as over after three goals in the first 38 minutes from Gianluca Sansone, Renan Fernandes Garcia and Roberto Soriano.
Soriano grabbed his second just after half-time and defender Angelo Palombo rounded off the scoring before the hour mark to give Sinisa Mihajlovic's men their biggest win this season.
|Liverpool relishing Britannia return, says Henderson|
|Everton big enough to keep Stones - Martinez|
|MLS Review: Fire stun Dallas as goals dry up|
|New Atletico signings excite Raul Garcia|
|Cahill expects Arsenal title challenge|
|Jovetic happy with Inter debut|
|Yanev calls for calm after ugly scenes in friendly|
|Luis Enrique: Barca defence must improve|
|Coppa Italia Review: Cittadella romp to victory, Brescia rely on penalties|
|Arsenal have learned how to play against big teams - Ramsey|
|Shawcross to visit specialist over back woe|
|Fiorentina 2 Barcelona 1: Bernardeschi double sends Barca to another defeat|
|Mancini hints at Melo interest|
|Rodgers hails ´incredible´ Benteke strike|
|Galatasary 1 Inter 0: Sneijder sinks former club|
|Wenger defends Arsenal approach|
|Wembley loss has no bearing on new season - Terry|
|Porto cruise to friendly win over Stoke|
|Mourinho denies Wenger ´snub´ suggestions|
|Arsenal abandoned their philosophy to win Community Shield - Mourinho|
|Mourinho throws Community Shield medal into Wembley crowd|
|Swindon Town 1 Liverpool 2: Benteke nets stunner on debut|
|Scottish Premiership Review: Hearts win thriller on top-flight return|
|Ujah at the double as Bremen beat West Ham|
|Mourinho: We were the better team|
|Wenger hails defensive solidity|
|Rooney returns as Villarreal spoil Ferguson´s party|
|Rodriguez stunner earns Southampton draw as Caulker makes debut|
|Arsenal 1 Chelsea 0: Case of 14th time lucky for Wenger against Mourinho|
|Taechaubol announces Milan agreement|
|Jojic fires Cologne to latest victory|
|China 0 South Korea 2: Kim and Lee seal victory|
|Origi getting up to speed|
|Costa a doubt for start of season - Mourinho|
|North Korea 2 Japan 1: Halilhodzic´s men spurn lead|
|Allam brands FA ´amateurs´ as name-change row rumbles on|
|Fournier ´worried´ by Lyon pre-season|
|Swansea still working on Michu exit - Monk|
|Neuer furious at Bayern Supercup defeat|
|Wenger: Ozil signing not a mistake|
|UEFA Champions League Preview: Shakhtar ready for Fenerbahce decider|
|Lampard targets MLS play-offs for City|
|MLS Review: Goals galore as DC United win 10-goal thriller|
|Ronaldinho returns and helps Fluminense to win|
|Keane: United won´t overtake Chelsea|
|Casillas has the ´enthusiasm of a 20-year-old´ - Lopetegui|
|Blanc hopeful over Ibrahimovic knee injury|
|Guardiola laments late goal in Supercup defeat|
|Tuchel plans to keep Bender|
|Hecking happy with Wolfsburg discipline after Supercup win|
|Arsenal players too interested in selfies and six-packs - Keane|
|Confusion over Ibrahimovic´s PSG future|
|Sporting Lisbon 2 Roma 0: Slimani, Mane inspire Portuguese hosts|
|Rodgers feeling ready for new campaign|
|Khedira to miss Supercoppa|
|Paris Saint-Germain 2 Lyon 0: Aurier and Cavani seal more silverware|
|Wolfsburg 1 Bayern Munich 1 (5-4 on penalties): Super-sub Bendtner nicks it for Pokal champions|
|Lampard´s long-awaited New York City debut ends in defeat|
|Casillas the spot-kick hero for Porto|
|Monk bullish ahead of season opener at champions|
|Marseille 2-0 Juventus: Night to forget for Serie A champions|
|Swansea end pre-season with yet another draw|
|HJK 0 Liverpool 2: Origi and Coutinho on target|
|Juventus rocked by Khedira injury scare|
|Lens and Pantilimon star as Sunderland beat Hannover|
|Pardew hopeful of concluding Wickham deal|
|Martinez allays Lukaku fears|
|Stuttgart 4 Manchester City 2: Cause for concern for Pellegrini|
|Wasteful Bournemouth held by Hoffenheim|
|Jerome seals Norwich win|
|Souare´s first goal ensures Palace draw|
|Sinclair hits hat-trick in Villa draw|
|Leicester end pre-season with thrilling Birmingham win|
|Wood and Mowatt condemn Everton to friendly defeat|
|Coloccini not involved as Newcastle lose to Gladbach|
|Borussia Dortmund 2 Real Betis 0: Ramos scores on return from injury|
|Stoke lose to Cologne on Afellay debut|
|Norwich capture goalkeeper Kean|
|Jovetic hits out at Pellegrini following City exit|
|Jones backing new boys to spark United revival|
|Scottish Premiership Review: Celtic up and running, Dundee hammer Kilmarnock|
|Can keen to learn from Milner|
|Immobile on the mend following friendly scare|
|Sagan Tosu 1 Atletico Madrid 1 (1-4 on penalties): Simeone´s men need spot-kicks|
|Cahill: Big-spending rivals will make title race tougher|
|Roberto happy to play full-back for Barca|
|Gestede eager to make his mark at Villa|
|I want to play more and score more - Remy|
|Lambert influence important, says Pulis|
|Benteke a ´bargain´ buy - Rodgers|
|Zola: Qatar would be ideal for Balotelli, Cassano|
|Suarez: I´m not among world´s best|
|PSG ready despite ´chaotic´ pre-season - Blanc|
|Arsenal thumping still hurts - Fournier|
|Aubameyang targets Champions League success|
|Rooney set for Everton return|
|Cech can match Van der Sar - Wenger|
|Mourinho ponders Wenger´s losing record against him|
|CBF confirm Fred failed a doping test|