Laurent Koscielny ensured Arsene Wenger marked his 20-year anniversary at Arsenal with a victory as he scored a controversial late winner to beat Burnley 1-0 at Turf Moor.
A resilient display from Burnley was undone in the final minute of stoppage time as Alex Oxlade-Chamberlain and Koscielny fumbled the ball over the line – despite the latter appearing to handle while also being in an offside position.
Chances were at a premium on Sunday, a day after Wenger brought up his two-decade landmark in the Gunners’ hotseat, with Alexis Sanchez wasting the visitors’ best chances.
Sanchez and Walcott dragged early chances wide in a cagey first half and Burnley should have gone in ahead, but Sam Vokes headed a glorious opening wide.
Another Sanchez effort clipped the Burnley post, before Michael Keane was denied by the crossbar at the other end as both sides pushed for victory.
But Arsenal snatched victory as Burnley appeals against Koscielny were waved away, the France international claiming all three points with his first goal of the season.