Chelsea and Arsenal both enjoyed 5-0 wins and Manchester City slumped to a 4-2 derby defeat to Manchester United as the Women’s Super League saw some major changes at the top of the table after the competition resumed following the Christmas break.

Leaders Chelsea hammered West Ham United and top the standings on 31 points from 11 games, seven ahead of Arsenal, who beat Crystal Palace to move up to second, and Manchester United, who moved past City and into third place.

City slid from second to fourth, nine points behind Chelsea, after Ella Toone’s hat-trick for their bitter cross-town rivals dealt a serious blow to their title hopes.

Reigning champions Chelsea took an early lead through Catarina Macario, with Erin Cuthbert and Aggie Beever-Jones also scoring in the first half to send them in 3-0 up at the break.

Sandy Baltimore netted seven minutes into the second half and a late Amber Tysiak own goal completed the rout as Chelsea remained unbeaten, with 10 wins from their 11 league games this season.

Across London, Arsenal’s Leah Williamson gave her side an early breakthrough before a four-goal barrage after the break saw the Gunners beat Palace.

Sunday’s late kickoff turned out to be a thriller as the Red Devils, who had never won away to City in the WSL, raced out to a 3-0 lead after 36 minutes, only to concede twice before the break.

However, Toone completed her hat-trick in the first minute of the second half and United were able to hold on to take the three points from their most impressive outing of the season.

Soccer star Erling Haaland has signed a 10-year contract with Manchester City.

Liverpool got the second half of the season underway on Friday with a 2-1 home win over Brighton & Hove Albion, while Merseyside rivals Everton were held to a 1-1 draw at home to Aston Villa on Saturday.

Inter Milan’s assistant coach Massimiliano Farris praised his team’s maturity in Sunday’s 3-1 home victory over Empoli and said they were focusing on one match at a time.

With manager Simone Inzaghi serving a touchline ban for accumulating yellow cards, Farris led Inter to victory with goals from Lautaro Martinez, Denzel Dumfries and Marcus Thuram.

“The team had a very mature approach; it doesn’t always mean coming out aggressively. We immediately found an Empoli side that focused on closing spaces at the back,” he told reporters.

“Often, games are unlocked in the second half due to the work done in the first. And when Lautaro (Martinez) does what Lautaro does, there are no issues.”

Farris added that they were not focusing on the table, with Inter three points behind Napoli at the Serie A summit but with a game in hand.

“We focus on the games to be played: before the match, we were six points behind, now it’s three,” he said. “Right now, we don’t have time to look at the calendar, we only think about what needs to be done.”

Goalscorer Martinez admitted that Napoli would be a tough challenge to overcome in the title race.

“It’s going to be fascinating. We are three behind, we have a game in hand, but as always we need to focus on our own path, because Inter have to do better every single year,” he told DAZN.

Giant-killing Jakub Mensik’s Australian Open ended on Friday at the hands of Spain’s Alejandro Davidovich Fokina as the 19-year-old Czech crashed out in five gruelling sets.

Mensik stunned sixth seed Casper Ruud en route to the third round and looked on track for another win when he took a two-set lead in Melbourne.

He had a match point in the third-set tie break but failed to convert and the more experienced Davidovich Fokina ground his way back as Mensik ran out of puff.

The 66th-ranked Spaniard eventually got over the line 3-6, 4-6, 7-6 (9/7), 6-4, 6-2 after a draining 3hrs 30mins.

It set him up with a clash against 12th seed Tommy Paul for a place in the quarter-finals after the American downed another Spaniard, Roberto Carballes Baena, in straight sets.

“Wow, I don’t know how to describe my feelings,” said Davidovich Fokina, who made the fourth round for the first time.

“Three wins for the first time in Australia, it means a lot.”

Mensik is one of a trio of teens who set the Australian Open alight with wins over top-10 players, alongside Brazil’s Joao Fonseca and American Learner Tien.

While Mensik and the highly rated Fonseca are now out, Tien is still alive after a massive five-set upset of fifth seed Daniil Medvedev.

He plays his third-round match against Frenchman Corentin Moutet on Saturday.