VIDEO: Watch Danny Welbeck's brace in Arsenal win

Danny Welbeck scored twice to send Arsenal into the fourth round of the Carabao Cup with victory over Championship side Brentford.

The striker headed in Matteo Guendouzi's cross after five minutes before poking home a brilliant move before half-time at Emirates Stadium.

Brentford's Alan Judge curled a superb 20-yard free-kick into the top corner after the break.

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Substitute Alexandre Lacazette scored a third for Arsenal in stoppage time.

The Frenchman pounced on a loose ball and slotted home, before Alex Iwobi had a goal ruled out for offside.

Watch highlights of the match below;