And Emery, who brought 12 academy products to Ukraine for this game, said he is hoping the club's other youngsters can learn from the England youth global.
The match was moved to Kiev at late notice after the Ukrainian president imposed martial law in some areas of the country earlier this week, making for a unusual atmosphere at a sparsely populated Olimpiskiy Stadium.
Arsenal's Smith Rowe celebrates scoring a goal
Emery mentioned that it is their policy to give young players a good platform and it has been working well.
The call to relocate the game was made on Tuesday evening, with Vorskla particularly unhappy with UEFA's decision and official confirmation that the match would take place at all not coming from the governing body until six hours before kick-off. They are working with us in all the sessions and also in preseason.
"We have a big responsibility with young players", Emery said.
Up to 500 Arsenal fans were expected to travel to the game in Poltava and had to make alternative arrangements to travel to the Ukraine capital.
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The match will be played at Kiev's Olympic Stadium after it was moved from Poltava because of security concerns. The Arsenal boss also handed debuts to three other teenagers who came off the bench in the second half in centre-back Zech Medley, winger Bukayo Saka and midfielder Charlie Gilmour.