Willock made it three for Arsenal
Arsenal scored their third of the match and all-but secured the three points through young forward Joe Willock.
Joe Willock, 19, kickstarted his first-team career as he opened his account for Arsenal, capping off an excellent first-half performance from the 'Gunners'.
On the counter-attack and with pace, Elneny picked up the ball in the centre of the field and spread the ball down the left towards Willock.
With space to run into, Willock drove at the Vorskla defence before cutting onto his favoured right-foot and giving himself the opportunity to strike.
The youngster expertly found the far corner of Shust's goal, with a curled low finish.