Gabriel Martinelli starred for Arsenal, scoring twice and assisting once in a comfortable 4-0 over Standard Liege at The Emirates.
The Gunners dominated the game from start to finish, with a poor Standard Liege side rarely threatening.
Arsenal opened the scoring in the 13th minute as Kieran Tierney whipped the ball in after some trickery on the left for Gabriel Martinelli to head in at the the near post.
Two minutes later Tierney and Martinelli was at it again, as the Scot again crossed for the Brazilian who turned brilliantly in the area before sweeping the ball beautifully into the far corner.
Joe Willock made it three in the 22nd minute, slotting the ball past Vanja Milinković-Savić in the Liege goal after the ball dropped nicely for him in the box.
Martinelli turned provider in the second half as the £6million summer signing dinked the ball superbly for Dani Ceballos to score his first Arsenal goal from two yards out.
The Brazilian could have had his hat-trick moments later but his glancing header was straight at the keeper.
Arsenal could have extended their four goal lead on a number of occasions but failed to add to their tally.