Unai Emery's side are nearly within touching distance of Spurs after a midweek of mixed fortunes for two near neighbours.
The German was restored to the starting line-up against Bate Borisov in the Europa League last week and made a decent impression when he came on as a substitute against Southampton on Sunday.
"Mkhitaryan became the first Arsenal player to both score and assist a goal in consecutive Premier League appearances since [Spain midfielder] Santi Cazorla in February 2015", according to GOAL. "Some players can rest, with the derby (against Spurs at Wembley) on Saturday".
It is a big motivation, but we were speaking and we need to take the opportunity like today, these three points.
The hosts took the lead after six minutes in weird circumstances, Lacazette neatly back-heeling home a pass from Mkhitaryan while the rest of the Arsenal team were still appealing for a penalty after Lucas Torreira took a tumble. I am now also very proud of our players.
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They did exactly that as Adam Smith's wayward cross-field pass was collected by Mkhitaryan, who exchanged a mesmerising one-two with Ozil before slotting home to double the advantage.
If Arsenal fans want a solution of one thing then it would be a solution to Mesut Ozil and Unai Emery saga.
If sloppy defending to go 2-0 down after less than half an hour was bad enough, it got worse when they switched off again after finding a foothold in the game. If we can play with big performance I want every player to help us with this decision.
Midfielder Dan Gosling, who saw a deflected effort strike the crossbar as the Cherries searched for a way back into the contest, questioned whether the players are now being "brave" enough to play their natural game. But that mindset takes away ownership of what we delivered with our own team. "I hope he'll be okay for Wednesday".
Bournemouth face another of the top clubs when they host Manchester City at 15:00 on the same day.