Arsenal beat Tottenham 3-2 in front of their fans to obtain crucial points in the title race.
The Gunners' matchup with their fierce rivals was thought to be the most dangerous of their upcoming games, but they mercilessly exploited Spurs' defensive weaknesses to take a three-goal lead into halftime.
Three minutes from the conclusion of normal time, Heung-min Son scored from the penalty after Declan Rice had fouled Ben Davies, sending Arsenal off course after a horrendous clearance by goalkeeper David Raya gave Cristian Romero a goal after 64 minutes.
After 15 minutes, Arsenal took the lead when the recalled Pierre-Emile Hojbjerg turned a corner from Bukayo Saka into his own net.
Thirty-seven minutes later, the England attacker capped off a sweeping counterattack with a cool finish to give Arsenal their second goal.
Spurs were furious that Leandro Trossard fouled Dejan Kulusevski before Saka's goal, and they were even more irritated when Kai Havertz, who was unmarked, headed in Arsenal's third goal from another corner seven minutes before halftime.
Spurs had seen Micky van de Ven's goal disallowed for a slight offside, with the score 1-0.
After that, Arsenal was happy to finish the game winning, but Raya gave Spurs hope by clearing right to Romero.
Son's penalty goal appeared to set up an unexpected Spurs comeback, but Mikel Arteta's team was able to win the game.
Kai Havertz was voted man of the match after recording one goal, one assist, two key passes, one big chance created, and one successful dribble. He won the vote by 37.5%.