The first heavyweight tussle of the new year in the Premier League did not disappoint as Chelsea and Liverpool played out an entertaining 2-2 draw at Stamford Bridge.
The Blues were held at home for the fifth time in six league games, a run that includes three straight draws in the top flight for the first time since February 2016.
But Thomas Tuchel's side can be happy with a point after recovering from two goals down as they extended their unbeaten run against the Reds in the league to four matches.
While there was nothing to separate the sides sitting second and third, Brentford, Brighton and Hove Albion and Leeds United were all victorious on Sunday.
Here, Stats Perform unpacks the pick of the Opta data from another eventful day in the Premier League.
Chelsea 2-2 Liverpool: Blues hit back after Salah strikes again
Sadio Mane opened the scoring in a Premier League game for the 37th time since joining Liverpool in 2016-17 – only Tottenham's Harry Kane (40) has done so on more occasions.
However, some will argue that Mane was fortunate to be on the field at that point after catching Cesar Azpilicueta with his elbow after just six seconds.
Mane was instead issued a yellow card with 15 seconds on the clock, making it the earliest booking in a Premier League game since Opta started recording such data in 2006-07, nine seconds faster than the previous quickest caution for Scott McTominay against Newcastle United in December 2019.
Mohamed Salah went on to double Liverpool's lead with his fourth league goal against Chelsea, which is the joint-most any player has scored against the Blues after playing for them, along with Manchester City's Kevin De Bruyne.
Chelsea responded brilliantly with two goals in the space of 245 seconds through a Mateo Kovacic stunner and Christian Pulisic's well-taken strike, ensuring they remain a point above their opponents having played a game more.
This was the fourth occasion in this season's Premier League that a side has failed to win a game in which they have led by two goals, with Liverpool accounting for two of those occasions, having also drawn 2-2 with Brighton in October.
Leeds United 3-1 Burnley: More Maxwell magic not enough
Leeds scored three times in a Premier League game for the first time this season on their way to ending a four-game run without a victory, putting distance between themselves and Burnley in the final relegation spot.
Previously with just one win to their name in the competition since the end of October, Jack Harrison squeezed home for Leeds to open the scoring at Elland Road before Maxwell Cornet equalised through Burnley's first direct free-kick goal since Boxing Day 2017.
That was Cornet's sixth Premier League goal in 10 appearances, the most by an African player in their first 10 games since Pierre-Emerick Aubameyang for Arsenal in April 2018 (also six).
Stuart Dallas restored Leeds' advantage on his 250th appearance for the club in all competitions, becoming the first United player to reach that tally since Lucas Radebe in November 2003.
The much-needed victory was sealed by Daniel James in added time, meaning Leeds are unbeaten in 10 Premier League games against sides starting the day in the relegation zone (W8, D2) since returning to the top flight last season.
As for Burnley, they have now won just one of their last 20 Premier League matches and are winless in 11 on their travels, their worst such run on the road since 17 without a victory between August 2016 and April 2017.
Everton 2-3 Brighton and Hove Albion: Mac Allister inspires soaring Seagulls
The highest-scoring game of the day in the Premier League took place at Goodison Park, where Everton suffered defeat in their opening league game of a calendar year for the fifth year running, their worst such streak since a run of seven between 1957 and 1963.
Brighton's opening goal via Alexis Mac Allister after two minutes and 43 seconds was the Seagulls' fastest-ever away from home in the competition, and their third-fastest overall.
Dan Burn doubled the visitors' lead on Merseyside, shortly before the returning Dominic Calvert-Lewin became the 22nd different player to miss a Premier League penalty for the Toffees – only Arsenal (23) have more.
Anthony Gordon scored his first senior goal to give Everton a bit of hope, only for Mac Allister to register for a second time as Brighton moved to 27 points after 19 games – their joint-best return at this stage of a top-flight campaign alongside 1981-82.
It was another afternoon to forget for Rafael Benitez, however, with Everton having now picked up only 19 points from 18 games, which is their worst return at this stage since accruing 17 from 18 matches in 2005-06.
Brentford 2-1 Aston Villa: Bees bounce back again
Comeback experts Brentford hit back to beat Villa late on thanks to goals from Yoane Wissa and Mads Roerslev after Danny Ings had opened the scoring in west London.
Only West Ham (12) and Everton (11) have won more points from losing positions in the Premier League this term than Brentford, who have now recovered nine points in total.
That is in complete contrast to a Villa side that have lost more games in the competition since the start of last season after scoring first than any other side (eight).
Ings has now opened the scoring in more different English top-flight games since the start of 2019-20 than any player (18), but that early strike was not enough for Steven Gerrard's men.
Wissa's equaliser was Brentford's first Premier League goal from outside the box and full-back Roerslev, who set up that strike, completed the turnaround to become the second Bees player to score and assist in the same game in the competition for the club after Ivan Toney.