BBC pundits Alan Shearer, Chris Sutton and Shay Given praise the "phenomenal" and "unplayable" performance of Alexis Sanchez against West Ham United.

Chelsea's Antonio Conte won the battle of two superstar bosses - and his start only adds to the questions facing Man City's Pep Guardiola, says Phil McNulty.

West Ham manager Slaven Bilic admits he feels under pressure and apologises to fans after the 5-1 Premier League home defeat by Arsenal.

Arsenal manager Arsene Wenger describes Alexis Sanchez as a "fighter" and a "classy player" after the Chilean scored a hat-trick in the 5-1 Premier League win at West Ham.

Arsenal move up to second in the Premier League table with an emphatic victory over West Ham at London Stadium.

Formula 1 driver Nico Rosberg retired from motorsport just four days after winning his first world championship title. The decision has been both applauded and criticised.

So, what would have happened if other sports stars or teams called it a day after reaching the top?

We asked the former Arsenal defender Lauren - a member of their Invincibles side - whether the team would have retired after their undefeated season.

Picture: Thierry Henry and Lauren. Credit: Getty Images.

Chelsea Football Club apologises "profusely" to a former youth team player over sex abuse he suffered.

Image source, .

There are five changes for West Ham from the side that lost 4-1 to Manchester United in the EFL Cup.

But if you're interested in changes from the last Premier League game - there are four from the 1-1 draw against United, with Winston Reid, Edimilson Fernandes, Ashley Fletcher and Anthony Masuaku coming in.

Andy Carroll is fit enough to be on the bench after a knee problem.

West Ham XI: Randolph, Collins, Ogbonna, Reid, Fernandes, Noble, Obiang, Masuaku, Fletcher, Payet, Lanzini.

Image source, .

Arsenal's changes from their EFL Cup loss to Southampton are wholesale - so let's compare apples with apples and look back at their last league game.

There are two changes from the 3-1 win over Bournemouth.

Mohamed Elneny goes to the bench, while Mathieu Debuchy is out with a hamstring problem. So Gabriel and Francis Coquelin come in.

Olivier Giroud misses out with a groin injury.

Arsenal XI: Cech, Gabriel, Mustafi, Koscielny, Monreal, Coquelin, Xhaka, Walcott, Ozil, Oxlade-Chamberlain, Sanchez

Manchester City manager Pep Guardiola apologises for his side's part in the mass brawl at the end of their 3-1 loss to Chelsea.

Antonio Conte says Chelsea's "confidence is up" after they followed up their 2-1 win over Tottenham with a 3-1 win at Manchester City.

Manchester City boss Pep Guardiola says it was a "pity'" their 3-1 defeat by Chelsea descended into controversy as two of his players were sent off in injury time.

Premier League players pay tribute to the victims of Monday's Colombian plane crash which killed 19 members of Brazilian side Chapecoense.

Chelsea come from behind to beat Manchester City 3-1 to strengthen their position at the top of the Premier League.

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

No wonder Pep Guardiola forget the risk his expensive suit by crashing to his knees after Kevin De Bruyne's dreadful miss - he knows games as tight as this are decided on the finest margins.

And just in case he didn't know, Chelsea now have a renewed spring in their step after Diego Costa's equaliser. This game is wide open now.

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

Manchester City's goal may have arrived in unlikely circumstances but it was deserved after they took charge in the final 20 minutes of the first half.

Chelsea are being stretched by City's width and the likes of Hazard and Costa are now being closed down after a bright start. 

City's fans were mixing cheers and jeers at half-time as they were still venting their fury on referee Anthony Taylor after his first-half performance.

Image source, Reuters

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

Manchester City fans are infuriated that referee Anthony Taylor did not give a foul after David Luiz stepped across Sergio Aguero following a mix-up with Cesar Azpilicueta.

It has really fired up the home support and Pep Guardiola's side are now enjoying their best period of the game. Just starting to get lively.

Image source, Getty Images

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

Chelsea have made a very decent start here - and Eden Hazard is drifting into those little pockets of space where he is so difficult to control.

Conte's men are also applying pressure on City's defence, with John Stones already caught in possession in his own penalty area.

Image source, PA

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

Cesc Fabregas has been sidelined since what appeared to be a watershed moment for Chelsea manager Antonio Conte, namely the 3-0 loss at Arsenal in late September.

Chelsea have won seven straight Premier League games since he was axed but an injury to Nemanja Matic means he is recalled for what is arguably the Premier League's game of the season so far here at Manchester City.

Fabregas is still a player of quality and high ambition so he will want to show Conte he can still be part of his long-term plans.

Arsenal's Brazilian defender Gabriel gives a heartfelt message that people "don't leave for tomorrow what you can do today" after the death of his friend Caio Junior in the Chapecoense plane crash.

An ex-Chelsea player claims the club paid him £50,000 to keep quiet about sex abuse allegations.