Laurent Koscielny made it 2-0 before half-time against Chelsea (Video)

Arsenal took the lead on 13 minutes when Alexandre Lacazette swivelled in the box to fire home from eight yards. Laurent Koscielny made it 2-0 before the break after taking advantage of some slack marking in the Chelsea defence. https://twitter.com/Noordinary_edem/status/1086688504338436096

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