EPL: Chelsea hit four past West Brom; Liverpool win as Salah breaks Fowler record; Arsenal overpower Spurs in North London derby

Antonio Conte celebrated his 50th English Premier League game as manager by watching his Chelsea side hammer West Bromwich Albion 4-0 at the Hawthorns on Saturday.
The result made it four straight league defeats for the Baggies, in spite of starting well and having an early goal ruled out for offside.
But once Alvaro Morata drilled home the rebound from an Eden Hazard shot to give the Blues the lead in the 17th minute, they never looked back.
Morata turned provider six minutes later, his slick backheel putting Eden Hazard on to round Foster and make it 2-0.
An unmarked Marcos Alonso deftly volleyed home a Cesc Fabregas free kick to make it 3-0 before halftime.
Hazard drifted in from the left to hammer home his second in the 62nd minute to cap a dominant Chelsea performance.
The result heaped the pressure on West Brom manager Tony Pulis, who has not seen his side win since a 1-0 victory at Burnley in August.
Meanwhile, Liverpool continued their push towards the English Premier League’s top four after Mohamed Salah scored two superb goals in a 3-0 win over Southampton on Saturday.
Salah broke former striker Robbie Fowler’s club record and became the first Liverpool player to score nine goals in his opening 12 league games.
He eclipsed Fowler’s tally of eight after a superb shot from 20 metres followed by a cool close-range finish in the first half.
Brazil midfielder Philippe Coutinho made it 3-0 midway through the second half when he swept home a rebound after goalkeeper Fraser Foster parried a fierce Roberto Firmino shot into his path.
The result left Liverpool fifth on 22 points from 12 games after they maintained their unbeaten run at Anfield in all competitions this season.
Southampton are 14th with 13 points, four above the relegation zone.
In a related development, Shkodran Mustafi and Alexis Sanchez earned Arsenal a convincing 2-0 English Premier League win over Tottenham Hotspur in the North London derby at the Emirates Stadium on Saturday.
Mustafi opened the scoring with a superb 36th-minute header and Sanchez doubled the advantage five minutes later with a close-range strike.
The result lifted Arsenal to fifth place in the table on 22 points, one behind Spurs.
Arsenal have now won 11 Premier League matches in succession at their home ground after their first league victory over arch-rivals Spurs in seven games.
The hosts started the better and Alexandre Lacazette should have done better than scoop a right-footed shot from the edge of the box high and wide in the fifth minute.
Harry Kane fired straight at Petr Cech a minute later but Arsenal remained the more potent attacking force.
They almost took the lead when Hector Bellerin’s 10th-minute cross only just missed Lacazette’s toe.
Tottenham were operating solely on the counter and went close twice in quick succession.
Christian Eriksen scraped the outside of the post in the 33rd minute, before Kane’s deflected header was saved by Cech.
They were made to pay in the 36th minute, following a disputed foul from Davinson Sanchez on Alexis Sanchez.
Ozil floated the resulting free kick into the box and Mustafi found the top corner with a brilliant guided header.
The hosts were now buoyant and doubled the lead five minutes later with another raid down the right flank.
Lacazette was fed by Bellerin and cut back for Sanchez, who made a mess of his first touch but lofted his second high into the net from a tight angle.
Tottenham were more urgent after the break but were unable to fashion clear-cut opportunities and increasingly became vulnerable to Arsenal counter-attacks as they pushed forward in search of an equaliser.
Sanchez had three chances to put the match beyond Spurs but lashed one of the efforts high and had the other two saved by Tottenham goalkeeper Hugo Lloris.
Any hope of a way back into the match for Tottenham seemed to disappear when manager Mauricio Pochettino took off Kane and Dele Alli.
Both of them were returning from injuries which had ruled them out of international duty.