13 September, 2017
The win was a flawless response to the 4-0 loss Arsenal suffered at Liverpool before the global break, although Bournemouth offered little resistance after Welbeck opened the scoring in the seventh minute.
Arsenal fielded their strongest side of the year, which featured an actual left back playing at left back and an actual right back playing at right back.
Welbeck had been criticised for missing a number of chances at Stoke and Liverpool in Arsenal's previous two losses, but Wenger said it is clear the England global is getting his confidence back after two seasons largely ruined by injuries.
The second period was less than three minutes old when Bournemouth's Jermain Defoe headed against the post but Welbeck struck again for Arsenal soon afterwards, finishing superbly from a tight angle.
Alexandre Lacazette scored the second goal on 28 minutes to give Arsenal 2-0 lead in the first half.
The game was essentially over at this point. A great finish from Welbeck with his weak left foot on the ground across Asmir Begovic's goal.
"That might mean we have to play players who do all the running for him and get him the ball to allow him to create".
"Before every game I have a selection problem and I'm always going to have to leave top-class players out - especially offensively because we have many top strikers", Wenger told reporters.
The end of the match was uneventful.
Substitute Sanchez, a rumoured target of Manchester City during the close season, had little chance to make an impact after he was brought on in the 75th minute. It looked to be a serious injury and Coquelin may be added to the list of injured players for Arsenal.
Wenger had talked up his side as title contenders before kick-off and the reaction on the pitch was promising, even if it would be unfair to evaluate the accuracy of the manager's claim against a Bournemouth outfit that scarcely looked like landing a blow. It was a professional showing against a Bournemouth side that is really struggling to start the season.
"[He] is very focused on the Premier League and the Europa League and he wants to do well".
Victory lifted Arsenal - who face champions Chelsea next - to ninth while Bournemouth are languishing in 19th ahead of their south-coast showdown against Brighton and Hove Albion on Friday.
"Let's not forget that he was out for a long time", Wenger said of Welbeck.