First-half goals from Olivier Giroud, Aaron Ramsey and Mohamed Elneny settled the contest, before Steve Lustica's consolation goal.

Both sides hit the woodwork in the second half, but there was no further addition to the score in an entertaining contest.

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Giroud opened the scoring on 33 minutes with an angled left-foot finish from Nacho Monreal's pass.

The Spaniard was the provider again when Ramsey lobbed home Monreal's long ball on 37 minutes, with Wanderers keeper Vedran Janjetovic off his line.

Elneny made it 3-0 when he strike from outside the box took a wicked deflection off Brendan Hamill.

The Egyptian had a curling effort hit the underside of the bar early in the second 45, before Wanderers full-back Jack Clisby also hit the woodwork.

Lustica pulled one back 12 minutes into the second half at the second attempt from an indirect free kick inside the box.

Mesut Ozil, who was a 66th minute substitute along with nine other players, also added a fourth when his 85th minute free-kick hit the post.

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