WATCH: Clinical Lacazette scores his first Arsenal goal!

WATCH: Clinical Lacazette scores his first Arsenal goal!

New South Wales Minister for Trade and Industry Niall Blair (2nd L) holds the FA Cup with Arsenal football players Petr Cech (R) Laurent Koscielny (2nd R), Per Mertesacker (C) and manager Arsene Wenger (L) in front of the Sydney Opera House on July 11, ahead of two pre-season football friendly matches against Sydney FC today and Western Sydney Wanderers on July 15.

The arrival last week of Alexandre Lacazette means that the once again, first-team starts will be limited next term for the big striker who told reporters at Wednesday's third kit launch that; "It (leaving) is an option to be honest with you".

Danny Welbeck had a controversial second-half penalty saved by Sydney goalkeeper Andrew Redmayne, whose impressive performance ensured the match remained in the balance until Lacazette's late intervention.

The victory could and probably should have been a little more emphatic, but Welbeck missed a second-half penalty.

"It's always difficult to know how to behave".

"Having Brazil and Argentina come to play in Melbourne opens the eyes and ears of other clubs and countries to play here", he said.

Alex Iwobi got down the right hand side, and then picked out Lacazette who had made a late run into the box before sliding the ball home.

A blend of youth and first team experience made up Wenger's starting eleven with the English trio of Reiss Nelson, Joe Willock and Cohen Bramall thoroughly impressing just days after the departures of highly-rated academy starlets Chris Willock and Dan Crowley.

Before that however, there were chances for another of Arsenal's debutants; Eddie Nketiah. That was despite a makeshift back-line of Ainsley Maitland-Niles, Mohamad Elneny and Nacho Monreal for the final 20 minutes or so.

A well-worked move led to Welbeck setting up Walcott, who looked destined to score, but Sebastian Ryall threw himself in the way to block with his back, only for the referee to point to the spot for handball.