Another academy product, Joseph Willock made it 3-0 for the north London club with a handsome curling shot from outside the 18-yard area. "For us, it's not different because they are working with us every day".
Vorskla vice-president Oleh Lysak had expressed doubts on Wednesday about whether the Olympic Stadium would be able to host the game on such short notice.
Speaking about the young attacker, the Arsenal manager said in a press conference: "He is taking confidence, he is taking responsibility and also I think today his performance in 90 minutes is very good".
"We have a big responsibility with young players", Emery said.
Apple in Supreme Court to block customers from suing for monopoly abuse
Software developers say that outcome would disrupt similar online marketplaces that operate between app creators and customers. The lawsuit was initially dismissed because the commission is imposed on the developers, not the purchasers who are suing.
"For us yesterday [Tuesday] we were preparing the first trip to Poltava and waiting in the evening for the last decision. The travel changed but Kiev also has lot of possibility for us and most important for supporters - we just want to play and win and show every supporter from London to do well".
The market has reacted accordingly to the likelihood of squad rotation with Arsenal priced at at 4/6 to come out on top against their inconsistent opponents. But Emery has kept both Pierre-Emerick Aubameyang and Alexandre Lacazette at home - leaving 19-year-old Eddie Nketiah as his main strike option.
Mkhitaryan is also back in Ukraine, where he spent three seasons with Shakhtar Donetsk before joining Borussia Dortmund in 2013.
'I would say it's a bit too early to say something about it but I'm very pleased to be here and I'm trying my best, ' he said. Then other younger players are coming through with us like Bukayo, Dominic, Zech and Charlie. We had a long trip but for us, it doesn't matter about where we play.