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Olivier Giroud proved a point as Arsenal won the second game of their Australian tour.

Giroud scored and outshone new £52m striker Alexandre Lacazette with an impressive all-round display in front of an incredible 83,221 crowd at the ANZ Stadium.

France striker Giroud opened the scoring after 33 minutes after firing home Nacho Monreal's low cross. Aaron Ramsey double the lead with a clever chip from another Monreal assist.

Mohamed Elneny’s deflected shot put Arsenal three up before half time. But Western Sydney Wanderers got one back from Steven Lustica after Arsenal conceded a free kick just ten yards out after sub keeper Emiliano Martinez picked up Ramsey’s back pass.

Arsenal boss Arsene Wenger sent on ten substitutes after 66 minutes and the game faded away. Mesut Ozil went closest to another goal but his 84th minute free kick hit the post.

Here are five things we learned...

Selling Olivier Giroud wouldn’t make sense

It would be so easy for Olivier Giroud to be sulking, knowing that a new player has been bought to replace him. But Giroud has not sulked, has always had a good attitude and is still being a very good professional.

Giroud opened the scoring for Arsenal with a typical smart near post finish. He looked sharp and dangerous.

Giroud is a different striker to Alexandre Lacazette, would provide back-up, a different option and also something from the bench.

If Alexis Sanchez does go then selling Giroud as well could potentially leave Arsenal short and they must try to keep him.

(Image: Getty)

Nacho Monreal has reinvented himself

Monreal was a revelation at the end of last season when he switched to playing on the left of a back three.

This season could be interesting with the arrival of Sead Kolasnic who can play there as well and Monreal could go back to being left wing back.

However, the competition and the new position continues to bring the best out of Monreal who turned provider from defence. His near post cross set up Olivier Giroud and it was his through ball which released Aaron Ramsey.

Monreal might have gone to Spain this summer but once again has risen to the challenge and is playing his best football for Arsenal.

(Image: Arsenal FC)

There’s a new banner in town

Forget those “Wenger Out” banners… the mood is different Down Under and a “In Wenger We Trust” banner was in the crowd.

It’s amazing what some backroom changes and ambition in the transfer market will do for the mood around the place.

Wenger needs support after last season’s turbulence and maybe the FA Cup success has changed frustration to anticipation.

(Image: AFP)

Western Sydney Wanderers are the Millwall of the A League

This is Arsenal’s second game in Sydney but they face a very different team - and set of supporters.

Sydney FC are the A League champions but Western Sydney Wanderers are the Millwall of Australian football.

Lively fans, raucous atmosphere and the games tend to get a bit lively as well as the Wanderers tore into Arsenal with some rough stuff.

(Image: Getty Images AsiaPac)

Guess the Aussie phrase

Arsenal have charmed the locals Down Under. Coaching clinics, fan parties and even a running race round Sydney Harbour with Arsenal players posing for selfies.

They have thrown themselves into it and won over the locals.

And just to prove it, Arsenal legend Ray Parlour - who is on the tour in his role as club ambassador - took part in pre-match games, including asking him to guess the Aussie phrase.

So, what’s a Snag? Answer: Sausage. Stickybeak? Answer: Nosey parker. Ray didn’t get either.