A 63rd-minute toe-poke on the goal line by Brazilian defender Gabriel earned Arsenal a 1-0 victory over Chelsea at Stamford Bridge on Sunday and lifted them back to the top of the Premier League.
Gabriel, lurking at the far post, got on the end of a Bukayo Saka corner that flew past a line of Chelsea defenders.
The deserved victory in a highly-charged London derby sent Arsenal two points clear of Manchester City on 34 points and left a second-best Blues side languishing in seventh, 13 points behind.
Mikel Arteta's side pressed hard and moved the ball at pace so that Chelsea were often squeezed into their own half.
But despite their superiority, Arsenal were profligate in front of goal, with Gabriel Jesus, Gabriel Martinelli and Ben White missing chances against Graham Potter's side.
But they enjoyed 56% possession and had 14 shots to Chelsea's five.
Chelsea's best efforts came on the counter-attack but they could produce only half-chances for Kai Havertz, Pierre-Emerick Aubameyang and Raheem Sterling.
Chelsea have earned just two points from their last four league matches and have lost two in succession after last week's 4-1 drubbing by Potter's former side Brighton & Hove Albion.
Neymar scored for the first time in 16 months after his penalty set Santos on the way to a 3-1 win over Agua Santa in the Paulista Championship on Sunday and the Brazil forward said he was happy to be playing again after a long injury absence.
His Highness Sheikh Mohammed bin Rashid Al Maktoum, Vice President and Prime Minister of the UAE and the Ruler of Dubai, attended the fourth stage of the Al Salam Cycling Championship, which took place on Sunday at Al Marmoom Conservation Reserve.
Manchester United manager Ruben Amorim insists there is no running away from the club's plight after they suffered a 1-0 loss at Tottenham Hotspur on Sunday, their 12th defeat in 25 Premier League games this season.
British debutant Emma Raducanu got her Dubai Duty Free Tennis Championships campaign off to the perfect start, defeating former World Number 3 Maria Sakkari 6-4, 6-2 under the lights on Centre Court.