On paper, this fixture has an Arsenal victory written all over it, given the attacking talents at Wenger's disposal as well as Palace's struggles to keep clean sheets at Selhurst Park.
Shkodran Mustafi had given the dominant visitors a deserved lead after 25 minutes but Arsenal were made to rue a host of first-half near-misses as Palace roared back soon after the break with a well-worked Andros Townsend goal.More news: Too Much Gaming Could Lead to Mental Health Disorder
After Sanchez scored twice against Crystal Palace, the Arsenal manager was asked whether he was concerned he may lose the Chilean at the end of the season.
62' - GOAL! Crystal Palace 1-2 Arsenal (Sanchez) Palace don't clear properly and Chambers lifts the ball towards the back post when the giant Sanchez wins a towering header, nodding down to Lacazette who does really well to hold up and tee him back up for an early spank which rushes past Speroni at his near post before he's noticed anything untoward.
Wilfried Zaha was Palace's most threatening player throughout the first half with the Ivorian maintaining the form that has seen him linked with a number of top clubs this season.
Christian Benteke was the subject of a lot of criticism on social media after their defeat to Arsenal, with many supporters stating they had felt that the striker had not offered them anything.More news: Dozens killed, many wounded in Kabul multiple blasts
Alexis Sanchez was the difference as Arsenal survived a pair of second-half scares to edge past Palace.
Roy Hodgson's side were aiming to extend their unbeaten streak of eight matches but found the visiting Gunners too strong to handle.
Crystal Palace did get a goal back in the final minute of normal time to make the game have an interesting finish, with James Tomkins heading home past Petr Cech.More news: Democrat Doug Jones Officially Declared Winner Over Roy Moore