Arsenal have never lost to Bournemouth in their six meetings but know they'll have a challenge on their hands here, just like they experienced on the South Coast past year where they fought from 3-0 down to draw 3-3; the only time they've battled back from that deficit in a Premier League match.
The morning of the game sparked more rumours of Alexis Sanchez's potential destination in January and with a move to Manchester United supposedly edging ever closer he was left out of the Arsenal squad entirely for their trip to Bournemouth.
Arsenal are now without a single win in their last four matches, drawing three and losing one.
After a quiet start, the second half burst into life when Arsenal took the lead after 52 minutes, Hector Bellerin on target after Iwobi had put him through one-on-one with Begovic, who got a hand to the strike but could not stop it.
But in a tightly contested first half neither side were able to get a shot on goal as it remained goalless at the break. Ryan Fraser found space in the box with five first half minutes remaining, only to be denied well by a Chambers block as the Gunners allowed an easy ball to come into the area from Ibe. Iwobi slotted an excellent pass inside left-back Charlie Daniels, allowing Bellerin to advance on Begovic before beating the keeper with a powerful angled shot. Referee Kevin Friend had a brilliant view but turned down strong appeals from those in red and black.More news: Texans looking to extend contract of coach Bill O'Brien
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The goal was Bellerin's second goal in consecutive EPL games for Arsenal.
The victory moved AFC Bournemouth from 17th to 13th in the Premier League, four points above the drop zone.
For Arsenal, their season is falling away without a trace.
Arsenal are now winless in five games in all competitions and five points adrift of fourth place in the Premier League table, prompting a disgruntled reaction from Wenger.