Goals from Theo Walcott and Mesut Ozil have given Arsenal a 2-0 half-time lead at Brighton & Hove Albion in the FA Cup fourth round.

It took the Gunners just two minutes to open the scoring when Walcott found the net for the first time in over a year with a low drive into the bottom corner, following good work from Calum Chambers down the right.

The visitors continued to apply pressure on their opponents after that as Aaron Ramsey shot wide before Walcott fluffed his lines after surging forward.

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Despite those wasted chances, Arsenal made it 2-0 midway through the half when Mesut Ozil was put through on goal by Ramsey before slotting in.

Brighton, who struggled to cope with the away team's pace, created a glorious opportunity on 30 minutes through Sam Baldock, but he could only fire over the crossbar when in space.

The Seagulls ended the half strongly as Jake Forster-Caskey blasted off target, but they were unable to reduce the deficit before the whistle.