Bukayo Saka’s double helped rampant Arsenal make club history and keep the pressure on Premier League leaders Liverpool in a game marred by a serious injury to Burnley’s Aaron Ramsey.
Martin Odegaard’s early strike put Mikel Arteta’s side in control and Saka added his 14th goal of the season from the penalty spot after Lorenz Assignon had felled Leandro Trossard.
The in-form England international then struck again at the start of the second half to take his tally to six in four matches before Leandro Trossard and Kai Havertz finished the job.