Alexandre Lacazette fired the decisive winner as Arsenal edged a five-goal thriller against Cardiff.
The Gunners were twice pulled back by Neil Warnock's side before Lacazette, who was handed a rare start, thumped home the winner.
Arsenal had gone ahead early on in south Wales when Shkodran Mustafi rose highest to head home from a corner.
But Cardiff deservedly drew level on the stroke of half-time as they capitalised on a Granit Xhaka error before Victor Camarasa found the net.
Arsenal went ahead again in the second period though after neat link-up play between Lacazette and Pierre-Emerick Aubameyang.
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The French striker teed up his strike partner with a flick before Aubameyang found the net.
Cardiff weren't done though and levelled it up again through Danny Ward's first Premier League goal but Lacazette had the last laugh.
