David Luiz's first goal in an Arsenal shirt saw off Bournemouth and propelled us up to third in the Premier League.
The Brazilian - signed from Chelsea in the summer - met Dani Ceballos' corner from the right-hand side and placed his header to perfection, beyond the dive of Aaron Ramsdale and into the bottom corner.
Pierre-Emerick Aubameyang had already gone close as we started the match brightly, and Pepe curled a shot just beyond the top corner at the end of a Matteo Guendouzi-inspired move.
Bournemouth arrived with attacking intentions but they only really came to life in the second half.
Callum Wilson snaked his way to the byline and rolled a dangerous low ball across our six-yard box, and Calum Chambers intervened brilliantly to clear Joshua King's cross away from danger.
The visitors sensed an equaliser but we defended stoutly to earn a clean sheet, and we almost grabbed a late second when Aubameyang hit the post.
HOW IT HAPPENED
THREE THINGS WE NOTICED
WHAT IT MEANS
As expected, Unai Emery made wholesale changes from our midweek win over Standard Liege. Dani Ceballos was the only player to keep his place.
More pertinently, Ceballos was the solitary change from the team that lined up at Manchester United on Monday. Lucas Torreira dropped to the bench.
The second international break of the season is upon us, and we'll have to wait a little longer than the rest of the Premier League to return to action.
Our next game is at Sheffield United on Monday, October 21.
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