Ghanaian teenage striker Eddie Nketiah came off the bench to score twice on his home debut and send Arsenal into the quarter-finals of the Carabao Cup at the expense of Norwich.
The England Under-19 international had played just a minute of first-team football for the Gunners before his introduction saw Arsenal come from behind and win 2-1 after extra-time.
Nketiah, 18, then equalized with his first professional goal just 15 seconds after coming off the bench.
That sent the tie into extra-time, where Nketiah headed home to seal a memorable Emirates Stadium debut and put Arsene Wenger’s side into Wednesday’s quarter-final draw.
Wenger made 11 changes from the team that won 5-2 at Everton on Sunday and they fell behind in the first-half as they struggled to gel.
Daniel Farke’s Norwich took a surprise lead with Murphy latching onto a superb through-ball from Sunday’s East Anglian derby match-winner James Maddison before finishing past debutant Matt Macey with a cute dink.
Macey did well to prevent Norwich doubling their lead before the break, pushing away a curling Nelson Oliveira shot after Murphy had wriggled free on the edge of the box.
Arsenal started the second half by committing plenty of men forward and were almost caught out by a simple through ball which set Oliveira away.
The Portugal international raced towards goal only to be halted by a Mohamed Elneny foul which could easily have seen the Arsenal man dismissed, with referee Andy Madley lenient in his issuing of a yellow card.