Mikel Arteta said his side's first-half display in a comfortable 2-0 win at Burnley was "one of the best we have played" as they extended their lead at the top of the Premier League.
Viktor Gyökeres and Declan Rice struck first half goals as the Gunners racked up a ninth straight win all competitions and fifth in the top flight.
Their half-time lead would have been more commanding but for two saves from goalkeeper Martin Dúbravka, who twice denied Bukayo Saka.
Arteta said: "We started the game exceptionally well.