Arsenal manager Mikel Arteta highlighted the impact of his substitutes after his side secured a 1-0 win over Nottingham Forest in the seventh round of the English top flight.
Arteta also acknowledged Arsenal’s lack of attacking threat before the interval, saying: “We did not have a single shot on target in the first half.”
The victory keeps Arsenal in second place in the Premier League.
Arsenal’s next league match is away to Everton on 24 October. Three days earlier, the Gunners will travel to face Bayern Munich in the Champions League.