Mesut Ozil/

Craig Cathcart’s own goal and a Mesut Ozil second was all Arsenal needed to secure a 2-0 victory over Watford for a seventh win in a row this season.

Alexandre Lacazette’s pressure on Cathcart saw him turn Alex Iwobi’s cross beyond Ben Foster with nine minutes to go at the Emirates Stadium, before which the visitors had enjoyed the better of the chances.

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Will Hughes had volleyed an early opportunity wide; Andre Gray had a one-on-one saved by substitute goalkeeper Bernd Leno and an Isaac Success effort glanced the post with the score goalless.

However, an unconvincing Arsenal went ahead and quickly added another, when Lacazette turned provider to find Ozil with a low cross, and the German fired home (83) to give the Gunners a fifth straight win in the Premier League.