Seems some of you lot are more bothered about the offside than I am, it was offside, it was marginal, and whether the linesman called it through luck or judgement or doesn't really matter now.
There were a couple of good shouts for pens, but this doesn't mean a great deal when the side gave Shawcross a chance to make it 2-0 with a free header in the box.
Fundamentally the side has no balance. Playing a right back at left back, an attacking midfielder at right back and two left backs at CB makes it a generally accident-prone team - Xhaka and Ramsey are crying out for a Kante like figure behind them, but even his industry doesn't hide the defensive balance issue. Ozil and Lacazette were playing well, creating best they could and an absolute forest of runs - there just wasn't enough invention, with the side content to pass it around until losing possession.
New names, but seems some things appear to be staying the same at Arsenal this season.