Danny Ings' stoppage-time strike rescued a point for West Ham as they drew 1-1 with Fulham at Craven Cottage.
Ings cancelled out Raul Jimenez's first-half goal as local bragging rights were shared in this London derby.
Fulham should have broken the deadlock in the 23rd minute, but Adama Traore headed Alex Iwobi's inviting cross wide from six yards out.
But the hosts were not to be denied just 60 seconds later. Smith Rowe beat the offside trap to latch onto Andreas Pereira's throughball, before crossing for Jimenez to tuck away.
West Ham went close to equalising on the hour mark when Jarrod Bowen brilliantly controlled Mohammed Kudus' cross, but was thwarted by Bernd Leno's smart reflex save.
The Hammers looked set to leave the Cottage empty-handed until the fourth minute of stoppage time, when substitute Ings took Bowen's centre into his stride before Leno could only help the fierce drive into the net.
Data Debrief: Jimenez continues to be scourge of Hammers
Jimenez continued his impressive scoring record against West Ham. The Mexican found the net against them in the Premier League for the sixth time; more than he has managed against any other side.
However, his efforts ultimately proved in vain. Despite an xG of just 0.53 - compared to Fulham's 1.61 - the Hammers struck with one of the last kicks of the game to prevent a third defeat in four matches.
It was Ings' first Premier League away goal since November 2022, while it was the latest West Ham have scored that gained points in the Premier League.
'We played two different games' - Maresca hails Chelsea response in Bournemouth win
Enzo Maresca felt Chelsea reaped rewards for "getting your t-shirt dirty", as they snatched a late victory over Bournemouth at the Vitality Stadium.
The Blues endured a steady start with their hosts generating the greater attacking threat for most of the contest, with Robert Sanchez keeping out Evanilson's first-half penalty.
Marcus Tavernier and Ryan Christie also struck the woodwork for the hosts, but substitute Christopher Nkunku landed the decisive blow five minutes from time.
And Maresca was pleased with his side's response to a difficult first-half performance.
"We played two different games," he told Sky Sports. "The first half, we struggled. We didn't win duels, we didn't win second balls. The second half, we were much better.
"We knew before the game that Bournemouth are very high pressing, man to man orientated. We faced a team who are very aggressive, it was more off the ball that we struggled. [The] second half completely changed the picture.
"This is football. Last time against [Crystal] Palace, we completely deserved to win the game. We had chances and we drew. Today, it was there and, in the end, we won.
"You cannot come here to this stadium and think about winning the game without getting your t-shirt dirty. You need to win duels, you need to fight. If we are able to do this for 95 minutes, you have more chances to win games."
Maresca handed a debut to new signing Jadon Sancho, who was introduced as a half-time substitute before providing the assist for Nkunku's winner.
And the Manchester United loanee lifted the lid on how he is finding life since his switch to Stamford Bridge.
"It's amazing to make my debut for Chelsea," he told Sky Sports. "Just being back playing, I'm very grateful. The team played very well, we dug in to the end and got the three points.
"I've been working hard for this moment, and I'm happy I got my chance. Going into this season, I wanted to have a good start, and I'm happy.
"I have to say thank you to the staff and team-mates. The first day I came in, they made me feel welcome and comfortable."
Real Sociedad 0-2 Real Madrid: Vinicius, Mbappe penalties close gap on Barca
Vinicius Junior and Kylian Mbappe both scored penalties as Real Madrid saw off Real Sociedad 2-0 at the Reale Arena.
Carlo Ancelotti's side moved to within a point of LaLiga leaders Barcelona, who visit fifth-place Girona on Sunday.
Already without the likes of Jude Bellingham, David Alaba, Eduardo Camavinga and Aurelien Tchouameni, Madrid suffered another injury blow in the 24th minute when Brahim Diaz was forced off with a muscular issue.
After a goalless first half, the visitors broke through 13 minutes after the restart with Vinicius slotting home from 12 yards after Sergio Gomez handled Arda Guler's shot.
Vinicus was then felled for Madrid's second penalty, which was awarded following a VAR review, with Mbappe making no mistake in sealing all three points.
Data Debrief: Madrid extend unbeaten streak
Extending their unbeaten LaLiga streak to 37 matches, Madrid have now won four successive away league games against Basque opposition for the first time since a run of four such victories between 2011 and 2013.
By contrast, Sociedad have now suffered four straight home defeats in the Spanish top flight for the first time since 2007.
Bournemouth 0-1 Chelsea: Late Nkunku strike snatches victory for Blues
Christopher Nkunku proved Chelsea's hero as his late strike secured a narrow 1-0 win over Bournemouth in the Premier League.
The forward climbed off the bench to strike the winner five minutes from time at the Vitality Stadium, where Robert Sanchez kept out Evanilson's first-half penalty.
Bournemouth looked the more likely to take all three points in the contest, with Marcus Tavernier's long-range thunderbolt rattling the crossbar early on.
Sanchez then came to rescue on 38 minutes by denying Evanilson from 12 yards, albeit after he had conceded the spot-kick for a foul on the Brazilian.
The woodwork denied the Cherries again after the break, with Ryan Christie seeing his precise low effort hit the outside of Sanchez's right post.
However, it was Chelsea who snatched the points with five minutes remaining. Receiving the ball from Jadon Sancho, Nkunku cleverly skipped away from a couple of challenges before slotting past Mark Travers in the Bournemouth net.
Data Debrief: More happy travels for super sub Nkunku
Nkunku's piece of individual brilliance settled the contest. All four of his Premier League goals for Chelsea have come away from home as a substitute.
The Blues held out at the other end to claim their first away league clean sheet in 18 attempts, while winning four straight matches on the road for the first time since 2022.
Meanwhile, history was made at the Vitality Stadium with the referee showing a total of 14 yellow cards; the highest amount issued in a single Premier League game.
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