Arsenal missed a chance to move eight points clear at the top of the Premier League as they were held to a frustrating goalless draw by Liverpool.
This was a disappointing game that ended on a notable sour note, with Arsenal substitute Gabriel Martinelli angering Liverpool in stoppage time when he crudely attempted to push Conor Bradley off the pitch after the defender went down close to the touchline with a painful knee injury.
Martinelli was booked and Bradley was taken away on a stretcher with hands over his face.
Arsenal, who had won their five previous Premier League matches, came into the match with a golden opportunity after title rivals Manchester City and Aston Villa both drew on Wednesday.
Last season's champions Liverpool, who arrived in north London on a nine-match unbeaten run in all competitions, were without Hugo Ekitike which meant Arne Slot was forced to name a starting line-up without a recognised striker.
The Gunners dominated the opening 45 minutes, but it was Liverpool who had the best chance when right-back Bradley seized on a mix-up between David Raya and William Saliba and sent a chipped effort against the crossbar.
Arsenal fired a number of crosses into the box but there was nobody on hand to apply a finishing touch.
Liverpool were then the better team in the second half and looked more of a threat going forward, but neither side could find a way to take the three points.
The result means Arsenal stay comfortably top, six points ahead of their closest rivals, while Liverpool remain fourth.