Chelsea's Premier League title hopes suffered a major setback on Thursday, as they failed to beat Everton at Stamford Bridge.
Mason Mount thought he'd given the Blues all three points, but a late equaliser from Jarrad Branthwaite salvaged a point for the visitors.
The result leaves Chelsea four points behind leaders Manchester City, who hammered Leeds 7-0 on Tuesday.
Everton, meanwhile, have moved eight points clear of the relegation zone but remain in 14th.
Here are the main talking points from an interesting evening in west London.
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Unconvincing Blues
Even if Chelsea had held on for the win, manager Thomas Tuchel wouldn't have been pleased with his team's performance.
The Blues struggled to breakdown an Everton team lacking players and confidence. It's now nearly a month since they won a Premier League game by more than one goal.
In comparison, Manchester City were at their brilliant best on Tuesday and never looked like dropping points.
Do Chelsea have what it takes to keep up with Pep Guardiola's all conquering team? Doubts are starting to emerge.
Give him more!
Reports last month suggested Mount is considering his future, as he wants to be seen as one of the club's biggest starts rather than an academy graduate.
And, on Thursday evening's performance, it's fair to say he deserves to be regarded as the former.
Mount was one of the few Chelsea players to impress, looking busy around the opposition box and taking his goal brilliantly.
If it wasn't for him, Everton would've probably claimed all three points.
Everton's worrying record
It's now just one win in 11 Premier League games for Everton, with the pressure growing on manager Rafa Benitez - despite a good result at Stamford Bridge.
The Liverpool icon was always going to be feeling the heat due to his Anfield links, but the Toffees' run of form would worry any coach in world football.
Benitez was without several first-team players due to injury on Thursday evening, including Richarlison, Andros Townsend and Seamus Coleman.
It's hard not to sympathise with the Spaniard, yet a manager is judged on his results. Benitez needs to start picking up some wins - if he survives the Christmas period.
But well done, lads
Saying that, Everton's youngsters put in an admirable performance at Stamford Bridge.
Striker Ellis Simms worked tirelessly on his Premier League debut, while defender Branthwaite did well to keep out Chelsea for 70 minutes and scored the all important equaliser.
When Simms came off just after the hour, teenager Lewis Dobbin picked up where his team-mate left off.
After spending tens of millions on high-profile players, it was the academy that gave Everton fans something to shout about on Thursday evening.
Covid crisis hits Blues
Chelsea stars Romelu Lukaku, Timo Werner, Callum Hudson-Odoi and Ben Chilwell have all tested positive for Covid, while Kai Havertz is awaiting the result of his test.
Five upcoming top-flight fixtures have been postponed due to the pandemic and, based on the result, Tuchel is perhaps regretting the Everton game going ahead.
And he'll be concerned about how many players he'll have available for Sunday's clash against Wolves at Molineux. Another postponement feels inevitable.
It's a worrying time for the Premier League - and the entire country, for that matter.
