Lacazette fired the Gunners ahead in the eighth minute after poor defending by the home side before new signing Gabriel made it 2-0 in the 49th and Aubameyang put the icing on the cake with a superb shot into the top corner.
Images from Day 1 of the 5th and final opening Test between Australia and England at the SCG in Sydney on Thursday
Toby Roland-Jones saw his dream debut continue as he completed a five-wicket haul to end South Africa's belated resistance and ensure England maintained their domination of the third Test at The Oval on Saturday.
