Victor Osimhen struck a hat-trick as Napoli extended their unbeaten Serie A run to 16 matches with a 4-0 thrashing of Sassuolo. Osimhen put Napoli ahead in the fourth minute after latching on to a pass from Khvicha Kvaratskhelia and flicking home. The 23-year-old Nigerian made it 2-0 in the 19th minute when he connected to another Kvaratskhelia pass and fired the ball behind the Sassuolo keeper, Andrea Consigli. Kvaratskhelia continued the rout in the 36th minute before Osimhen completed his hat-trick in the 77th minute by intercepting a poor Sassuolo pass and lobbing the ball over Consigli. Napoli lead Serie A with 32 points from 12 games, six clear of second-placed Milan, who face Torino on Sunday. Sassuolo are ninth with 15 points. A late goal by the half-time substitute Nicolò Fagioli earned Juventus a 1-0 victory at Lecce as Massimiliano Allegri’s side took their third consecutive win in Serie A. Juve moved up two places to sixth on 22 points, 10 points behind Napoli. After a dull first half, the Juventus midfielder Adrien Rabiot came close to nodding in a corner from Filip Kostic just before half-time but the Lecce goalkeeper, Wladimiro Falcone, dived to deny him. Three minutes into the second half Falcone kept out a header by the defender Federico Gatti then saved a back-heel from close range by Arkadiusz Milik. The 21-year-old Fagioli secured the win with his first Serie A goal after 73 minutes when his curled shot from the edge of the box bounced in off a post after an assist by his fellow substitute Samuel Iling-Junior. Internazionale eased to a 3-0 victory over relegation-threatened Sampdoria at San Siro, extending their winning Serie A streak to four games and moving up to fifth with goals from Stefan de Vrij, Nicolo Barella and Joaquin Correa. “We are well, confident, we get convincing results – but we have to continue,” Simone Inzaghi said. “Nobody slows down in this league but this October has been practically perfect … I have so much fun watching this team play.” Bayern Munich demolished visitors Mainz 6-2, with Sadio Mané scoring once and setting up two more goals, to take over the lead in the Bundesliga. The Senegal international, who scored in Bayern’s 3-0 midweek win at Barcelona in the Champions League, also missed a penalty. Serge Gnabry, Jamal Musiala and Leon Goretzka were also on target for Bayern along with the substitute Mathys Tel and Eric Maxim Choupo-Moting. Mainz briefly cut the deficit twice, with goals from Silvan Widmer and Marcus Ingvartsen, after also missing a penalty. The champions are now two points clear at the top of the table with 25 points. Union Berlin, in second place on 23, are in action against Borussia Moenchengladbach on Sunday. Mainz drop to eighth on 18. The England international Jude Bellingham rifled in his third league goal of the season to give Borussia Dortmund a 2-1 victory over Eintracht Frankfurt that lifted them into third. Bellingham fired Dortmund back in front in the 52nd minute with a low shot but his side had the goalkeeper Gregor Kobel to thank for protecting their lead with a string of superb saves in the second half. Dortmund took a 21st-minute lead through Julian Brandt but Frankfurt levelled five minutes later when Daichi Kamada rifled in from 18 metres for his seventh goal of the campaign. After Bellingham’s goal Frankfurt pushed forward and forced Kobel to pull off save after save, twice denying Randal Kolo Muani and Jesper Lindstrom and coming to the rescue several more times. Elsewhere, goals from Christopher Nkunku and Timo Werner sealed a 2-0 win for RB Leipzig against Bayer Leverkusen. In La Liga Barcelona striker Robert Lewandowski scored a 93rd-minute winner as they beat Valencia 1-0 to take provisional top spot, level on points with Real Madrid. With the match heading for what seemed like a goalless draw, Raphinha looped a cross into the box which was acrobatically stabbed home by a stretching Lewandowski for the Polish striker’s 13th league goal of the season. The result means Barca have 31 points after 12 games, the same as Real who host second-bottom Girona on Sunday. Atlético Madrid suffered a dramatic 3-2 defeat at relegation-threatened Cádiz, three days after Diego Simeone’s side were knocked out of the Champions League in the group stage. Théo Bongonda put Cádiz ahead in the first minute with a left-foot shot, before Alex Fernández added a second 80 minutes later after completing a team move. The Cádiz defender Hernández scored an own goal four minutes later, though, and the Atlético substitute João Félix fired in from outside the box in the 89th minute. It was left to Rubén Sobrino to slot home from close range in injury time to restore Cádiz’s lead. The win takes them to 18th spot with 10 points, while Atlético remain in third on 23 points, eight behind the leaders, Real Madrid, who have a game in hand. Sevilla’s poor form continued after a 1-0 defeat at home to Rayo Vallecano, who sealed victory in the 61st minute thanks to a goal from Álvaro García Rivera. The result leaves Sevilla in 17th place on 10 points. Lionel Messi grabbed a goal and an assist to inspire Paris Saint-Germain to a 4-3 comeback victory over Troyes as they restored their lead at the top of Ligue 1 to five points. Mama Baldé gave Troyes the lead twice before Messi assumed control to score his seventh league of the season and take his tally of assists to 10 – a league high. Troyes needed just three minutes to stun the crowd at the Parc des Princes as Abdu Conté raced down the touchline to send a cross into the box where Rony Lopes set up a chance for Baldé to volley in. In the 24th minute Neymar scooped a ball into the box for Carlos Soler, who rounded the keeper to score, but Baldé restored Troyes’ lead seven minutes into the second half after firing low past the goalkeeper Gianluigi Donnarumma. Messi then stole the show, first by equalising from long range with a sizzling strike before turning provider minutes later with an incisive ball for Neymar to score as PSG went ahead for the first time. Gallon then brought Soler down in the box and Kylian Mbappé converted the penalty. Troyes pulled one back through an Ante Palaversa header but PSG held on. The visitors remain in 11th place with 13 points.