The points are shared in West London as Chelsea once again fought back from a goal behind to earn a point against London rivals Arsenal.
It was a somwhat forgettable first half; a disallowed Kai Havertz goal the only real highlight, but things came to life after the break, Gabriel Martinelli netting the opener after Chelsea switched off at the back.
Pedro Neto proved the hero for the hosts, as he produced a wonderful strike to score his first league goal for the Blues and level the score.
Arsenal now have two draws and two losses in their last four league games, and Mikel Arteta will have been disappointed not to leave Stamford Bridge with all three points.
Chelsea go third in the table ahead of the international break, but are level on points with fourth placed Arsenal, as well as Nottingham Forest and Brighton, in fifth and sixth respectively.
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Story of the match
Arsenal were bolstered by the return of their captain, Martin Odegaard, who made his first league start for the Gunners since picking up an ankle injury in September.
Declan Rice and ex-Chelsea forward Kai Havertz also featured, despite concerns over the pair's fitness.
Chelsea chose not to risk their skipper, with Reece James making way for Marc Cucurella at left-back. Cole Palmer was deemed fit enough to start after picking up a knock against Manchester United.
It proved to be a strong decision, as the midfielder tested goalkeeper David Raya from distance after only two minutes played.
The Blues certainly appeared the more settled of the two sides in the opening moments, and had the benefit of a rested first team - Arsenal were still working their way back to fitness after a Champions League defeat to Inter in midweek.
Breaking out of the Arsenal press and finding space for Cole Palmer would be Chelsea's aim. A good chance on twenty minutes saw Palmer finding Pedro Neto free down the left wing. His cross found Noni Madueke on the other side, but his headed effort was tame.
Neto proved potent in the first half and was effective in the space left by the advancing Ben White. Another excellent cross from the left hand side found Malo Gusto, but the Frenchman's effort blazed over the crossbar.
After half-an-hour played, the derby became more and more lively, with chances at both ends defended well. A block and a save from the Chelsea defense kept out Bukayo Saka and Gabriel Martinelli, before Madueke's edge of the box effort was smothered by several red shirts.
Kai Havertz thought he had opened the scoring after Chelsea failed to deal with a quickly taken free kick, but the German veered marginally offside and the goal was chalked off.
Palmer found himself with very few touches on the ball to build attacks, and squandered two good chances from free-kicks. Neto looked to be a threat on the wing, but needed to be careful after being booked.
It was an evenly-matched first half with few chances - only a shot on target each - but the match was there for the taking for both sides.
Chelsea's wide men saw a lot of the ball at the beginning of the second half, with crossed efforts from both Neto and Madueke intercepted by Raya.
Madueke had been quiet in the first half but got more involved after the break; a wonderful crossed chance found an advanced Wesley Fofana, who's volleyed chance flew over the bar.
The Blues looked lively after the break, and enjoyed a positive spell of possession as they looked for the opening goal.
It would be Arsenal who would find it, as they led on the hour after the returning Odegaard found Martinelli free at the back post.
Chelsea had lost possession in their own half and failed to mark the Arsenal winger as he drifted in behind the defence.
Similarly to the Manchester United game, Chelsea found themselves nabbing a quick equaliser after going behind - this time it was Pedro Neto, who built on his strong first half to fire a clinical finish into the bottom right corner and level the score in the derby.
Arsenal looked to respond with two good opportunities for Mikel Merino, who couldn't find the target. Nicolas Jackson then found the net after being played through, but knew he had drifted offside as the flag went up.
A big blow for the Gunners amidst their injury woes - Bukayo Saka had to be brought off with ten minutes to play after being brought down by Marc Cucurella.
Reece James was introduced in the last few minutes of normal time, and played high up the pitch to try and find a goal. A pinpoint pass was directed into the box by the Chelsea captain, with Jackson heading the loose ball straight at the goalkeeper.
There were changes for both teams in the latter stages of the match, with both managers pushing for a win. The Gunners had a great chance through Leandro Trossard, who had an open net to aim at, but his shot flew off target and the flag went up.
The last kick of the match could have been an Arsenal winner - three lined up to turn in a wonderful William Saliba cross, but the net did not bulge, and Arteta fell to the floor in disbelief as the full time whistle was blown.
The points were shared, with Chelsea moving up to third, ahead of their London rivals on goal difference.
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Player of the match: Pedro Neto
Chelsea's last league game against Manchester United ended in a 1-1 draw - their opponents took the lead, before a quick equalizer scored in spectacular fashion.
Strangely, this game took a similar course, and Chelsea's wonder equaliser came through Pedro Neto.
In a relatively dull first half the Portugese winger was a bright spark, often Chelsea's main attacking outlet as he created several crossing chances.
He took his goal expertly in the second half, finding space on the edge of the box and applying power and direction to his effort which flew past the experienced David Raya in goal.
He remained solid even when switched to the right, and continues to thrive in his first season at the club.
