The Scotland international's third goal of the season added the Gunners' scalp to the one he collected from Manchester United in February after Ayoze Perez had cancelled out Alexandre Lacazette's opener.
It is a little bit of the story of the season away from home, we went 1-0 up, we don't put the game to bed and we made mistakes defensively.
Arsenal were already certain to rest players from the Singapore competition because of what has always been Wenger's desire for them to have at least three completely clear weeks of rest during the summer. It doesn't make sense.
'When a team goes down it is very hard to come straight back up and to then have the sort of season we are having.
The sixth-placed Gunners are 13 points behind fourth-placed Tottenham with only five games remaining in the race to qualify for the Champions League.
Alfie Evans' family dealt fresh court blow
The parents of terminally ill Alfie Evans have lost a legal fight to move their son to a hospital in Italy . The parents lost their bid to allow Alfie to be taken overseas for treatment.
Arsene Wenger has revolutionised their club but Arsenal fans have rejected it for some time now, even though the entertaining football has continued to flow.
Benitez had his own dynamic forward line back when he coached Liverpool, and he was asked to react to the announcement from Fernando Torres that he is leaving Atletico Madrid at the end of the season after first trying to reach the Europa League final at Arsenal's expense.
Just moments after he was left writhing on the turf following a crunching challenge from Kenedy, Lacazette exacted revenge.
Alex Iwobi nearly doubled Arsenal's lead moments later with a stinging strike that forced a good save from Martin Dubravka.
Perez made a perfectly-timed run to meet Yedlin's cross with a fine finish that flashed by Petr Cech at his near post. The 18-year-old midfielder might have marked his debut with a first-half goal, but fluffed his lines with just goalkeeper Martin Dubravka to beat when he miskicked from Lacazette's inviting pass.
I remember going down to London for a meeting nearly a decade ago and stayed over for a few days, Arsenal were playing a Champions League match and I watched it with another Newcastle fan who was also down for this business meeting.