Arsenal 2 Burnley 1
Wenger gave starts to Chambers, Ospina, Gabriel, Gibbs, Elneny and Iwobi.
The ever-inventive Alexis Sanchez made a tiny pass to Chambers, who responded by smacking the ball with the outside of his right boot.
1-0 to the Arsenal in 18.
But their defending on a cross by eye-catching right-back Tendayi Dario was abysmal and that made it easy for striker Sam Vokes to equalise with a mighty header.
Then Sanchez buried an inviting chance created by Oxlade after Iwobe had found the Ox with a swift crossfield pass.
2-1 to the Arsenal in 53.
Koscielny saw an effort cleared off the line, Elneny had a half-volley that flew about a yard wide. This lad will score a spectacular goal in the next 5 weeks.
Walcott had a breakaway chance to put the icing on the cake but bungled his one-on-one.
Verdict: 2-1 was a fair result.
Arsenal will march on in the FA Cup, as long as they are drawn at home.
FA Cup Fifth Round draw :
Chelsea v Manchester City
Reading v West Brom/Peterborough
Watford v Leeds United
Shrewsbury Town v Manchester United
Blackburn v Liverpool/West Ham United
Tottenham v Crystal Palace
Arsenal v Hull City
Bournemouth v Everton