Arsenal secured their fourth Premier League victory in a row as they ran out comfortable winners at Carrow Road and heaped more misery on bottom-of-the-table Norwich.
Bukayo Saka opened the scoring after six minutes when he guided a low shot past Angus Gunn at the end of a slick Arsenal attack and proved to be the best in English football league one.
The impressive Martin Odegaard, who teed up Saka’s opener, then sent Kieran Tierney through to score the away side’s second just before half-time.
Saka added a fine third before Alexandre Lacazette’s penalty and substitute Emile Smith Rowe’s stoppage-time strike wrapped up a stress-free win for Mikel Arteta’s side.
The victory meant the Gunners maintained their six-point lead over fifth-placed Tottenham, while Norwich must regroup after a 12th defeat of the season.
Canaries boss Dean Smith admitted he “didn’t see that coming” after watching his side go “toe-to-toe” in defeats by Manchester United and Aston Villa.
“This was just as flat a performance as we have had and it was littered with unforced errors,” he said.