So, what impact have the weekend's results had on the Premier League title race?

BBC Sport's chief football writer Phil McNulty has assessed the seasons so far of each of the top six clubs.

You can read the full feature here.

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This is how it stands at the top of the Premier League.

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Speaking of Pep Guardiola, his Manchester City are now 10 points behind leaders Chelsea after losing at Everton - the heaviest league loss in Guardiola's managerial career.

Can City win the title this season? Asked if the gap was too great, he said: "Yes. Ten is a lot of points."

Guardiola, 45, has told his players to unite "in the bad moments" and "forget the table" until the end of the season.

Watch his interview with BBC Sport below.

In 2013 Bayern Munich confirmed Pep Guardiola would become their new coach from the start of the 2013-14 season. He replaced Jupp Heynckes. The 45-year-old went on to win seven trophies during his three-year spell at the German side. 

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Pablo Zabaleta (football) - Manchester City's Argentine right-back, celebrates his 32nd birthday.

Cliff Thorburn (snooker) - Canadian player who became world champion in 1980 and three years later became the first man to complete a maximum 147 break in the World Championship, turns 69.

Martin Jol (football) - Former Tottenham, Fulham and Ajax manager, was born on this day in 1956 and is 61.

Neil Back (rugby union) - Former England flanker, a World Cup winner in 2003, celebrates this 48th birthday.

Bobby Zamora (football) - Former Brighton, West Ham and England striker, is 37.

Nicklas Bendtner (football) - Nottingham Forest and Denmark striker, formerly with Arsenal, turns 29.

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Diego Costa is such a big talking point that our gosisp column - have a read here - has a whole section devoted to the Chelsea striker:

Costa rejected the offer of a new £200,000-a-week contract offer before a reported bust-up with manager Antonio Conte -Times (subscription required), external

The Sun say Costa is ready to call a truce with the Blues and stay with them until the end of the season - Sun, external

The Daily Express say Costa will leave at the end of the season -Daily Express, external

Conte expects Costa to be back at work this week after Chelsea owner Roman Abramovich made it clear he wants the two make up, and he will not allow the striker to leave - Daily Mail, external

Conte has told Costa to forget about going to China and insisted: "Money is not everything" -Daily Mirror, external

Costa has been offered £600,000 a week to join Jiangsu Suning, with the Chinese Super League side also willing to pay £80m for the striker  - Daily Star, external

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Chelsea striker Diego Costa had everyone talking at the weekend after being left out of the squad to face Leicester following a dispute over his fitness. We take a look at what is happening.

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It has also been a weekend when moody footballers have made the headlines.

Diego Costa was left out of the Chelsea squad, amid rumours that he could be set to join a Chinese Club. Dimitri Payet has also said he wants to leave West Ham.

The Hammers are increasingly minded to sell Payet before the end of the January transfer window with Marseille keen to bring the 29-year-old back to Ligue 1, reports the Evening Standard. , external

Hammers boss Slaven Bilic initially said he would not sell the Frenchman but, according to the Standard, "the club look more favourably on the prospect" after Saturday's 3-0 victory over Crystal Palace because "there is enough quality to survive a potential Payet exit".

Andy Murray won his first round match at the Australian Open earlier today and Dan Evans has just joined him in round two with a 7-6 6-3 6-1 win over Argentina's Facundo Bagnis.

However, another British player, Aljaz Bedene, is out after he lost 7-6 (9-7) 7-5 0-6 6-3 to Dominican Republic veteran Victor Estrella Burgos.

Follow the live text and radio commentary of the Australian Open here.

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BBC Radio 5 live

Got a few minutes spare, then can we push you in the direction of the BBC Radio 5 live Football Daily Podcast, with all the reaction and chat from the weekend's games.

BBC Sport app users may need to select the below link.

Match of the Day 2 pundit Phil Neville analyses the tactical battle between Jose Mourinho and Jurgen Klopp during the 1-1 draw at Old Trafford.

MATCH REPORT: Manchester United 1-1 Liverpool

The Liverpool and Manchester United managers did not see eye to eye in how each team had played.

Jurgen Klopp said: "They (United) play long balls in a wild game. We played the better football and had the better plan."

United counterpart Jose Mourinho argued: "We attacked and Liverpool were the team that defended."

"They were clever," added Mourinho. "They took their time, they know how to play football and control the emotions of the game. They knew they would be in trouble in the final few minutes."

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Manchester United manager Jose Mourinho says Liverpool were "much more defensive" than his side during their 1-1 Premier league draw at Old Trafford.  

Despite conceding a late equaliser, Liverpool boss Jurgen Klopp was happy with his side's performance, as you can see in this interview with BBC Sport.

In the second game on Sunday, Zlatan Ibrahimovic's late equaliser earned Manchester United a point they fully deserved after a typically thunderous encounter with Liverpool at Old Trafford.

Liverpool led through James Milner's 27th-minute penalty, awarded after Paul Pogba inexplicably handled a corner as he went up to challenge Dejan Lovren.

Goalkeeper Simon Mignolet was Liverpool's hero with superb first-half saves from Ibrahimovic's free-kick and Henrikh Mkhitaryan, as Jurgen Klopp's side put up stern resistance and threatened on the break.

It looked like the visitors were going to hold on and move back to second in the Premier League, but United finally forced the goal they merited when Antonio Valencia reacted first when substitute Marouane Fellaini's header came back off the post, crossing for Ibrahimovic to head home off the bar.

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Watch as Everton treated Sunderland fan Bradley Lowery to a day to remember.

Five-year-old Bradley, from Blackhall Colliery near Hartlepool, was cheered as he was carried on to the pitch by Toffees striker Romelu Lukaku on Sunday.

Before kick-off, Bradley kicked a ball into the Goodison Park net. Bradley was diagnosed with neuroblastoma in 2013.

Pictures courtesy of the Premier League.

WATCH MORE: Terminally ill Bradley scores against Chelsea

WATCH MORE: Five-year-old Bradley wins goal of the month

Watch an interview with Everton boss Ronald Koeman, who says his side put in a "perfect" performance in the second half of their 4-0 win over Manchester City at Goodison Park.  

It was not a happy return for former Everton defender John Stones, who left Goodison Park in a £47.5m move last summer.

MOTD2 pundits Phil Neville and Alan Shearer discuss the Manchester City defender and question his development after Pep Guardiola's side lost 4-0 to Everton, with the 22-year-old at fault for the Toffees' fourth goal at Goodison Park. 

READ MORE: Man City have problems in attack as well as defence - Phil Neville

What a day Sunday was for Everton fans. Not even the most optimistic Toffees fan could have expected what happened as they cruised to a 4-0 win over Pep Guardiola's Manchester City.

The Toffees restricted Guardiola's side to few chances and scored with four of just six attempts at goal.

Romelu Lukaku coolly side-footed in a Kevin Mirallas cut-back and the Belgium internationals combined again after the break, Mirallas drilling Lukaku's through-ball across the keeper.

Tom Davies sent Goodison Park into raptures on just his second league start by dinking a third over Claudio Bravo and £11m debutant Ademola Lookman fired between the legs of the keeper in injury time.

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We will have a lot more football chat soon, but first a quick update as to what is happening on day one of the Australian Open.

Britain's Andy Murray has won his first Grand Slam match since becoming world number one but was given a stern test against world number 95 Illya Marchenko.

A clearly frustrated Murray was far from his best but reached the second round with a 7-5 7-6 (7-5) 6-2 win over the Ukrainian.

The Scot, attempting to win his first Australian Open title after five final defeats, won in two hours 48 minutes. The 29-year-old Wimbledon champion faces Russia's Andrey Rublev next.

Another Brit, Dan Evans, is currently in action and took the first set against Facundo Bagnis of Argentina.

Follow all the latest from the Australian Open with our live radio and text commentary.