Bukayo Saka set them on their way with a first-half penalty and a double from Mikel Merino – stepping into the centre-forward role in the absence of Viktor Gyokeres – sealed the deal.

The clean sheet was the Gunners’ ninth in a row, eclipsing the record set in 1903 which they equalled with Saturday’s victory at Burnley.

Max Dowman also broke a record, becoming the youngest player to appear in the Champions League at 15 years 308 days old.

The victory was their fourth in four Champions League matches so far this season, and their 10th consecutive victory in all competitions.

This was far from Arsenal’s most fluent performance of the season but they are an unstoppable machine at the moment. The wheels could have come off with Gyokeres’ injury, but Merino’s brace ensured they rolled on re

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