With a new manager brings a new style of football and that's exactly what's starting to take shape at Arsenal under Unai Emery.

'Wenger ball' became the norm during Arsene Wenger's 22-year spell at the club but things are about to change.

During his time at Sevilla and Paris Saint-Germain, Emery became renowned for his philosophy of playing out from the back and deploying a high press.

It clearly worked for the Spaniard as he guided Sevilla to three-consecutive Europa League triumphs and won the domestic quadruple in his only season as PSG manager.

But in Arsenal's opening game against reigning champions Manchester City on Sunday, Emery's tactics didn't quite pay off.

Under his manager's orders, Petr Cech tried to play out from the back but gave away possession numerous times, almost scoring an own goal on one occasion.

Arsenal's defenders didn't look overly comfortable receiving the ball under pressure either, which also led to dangerous situations.

CHANGE IN STYLE

Emery has a lot of work to do but according to Sam Allardyce, the new Arsenal manager was completely to blame and should drop his "stupid" tactics.

"It's the manager's fault," said Allardyce. "Don't ask somebody to do against Man City what you shouldn't do. You shouldn't play out like that against Manchester City.

"What do Manchester City do? They press, press, press so why do you try and play out when they press, press, press?

"We are getting obsessed with this stupid 'let's play out from the back, split the centre halves either side of the 18-yard box and go and play from there'.

"It's utter rubbish to play like that all of the time. When you're the best at it (like City) then you can do it."

Emery's tactics received a mixed response from Arsenal fans, but now a tactical analysis video has emerged of the City game showing there's reason to be positive.

In the footage below, which has racked up over 30,000 views on Twitter so far, @wozthegooner details the effectiveness of Arsenal's high press when Aaron Ramsey is used as a "trigger".

By working together and pressing in numbers, Arsenal's front six forced City into making mistakes on several occasions and were able to win back possession as a result. Check it out.

Changing the way Arsenal attack and defend is a work in progress for Emery, but the 46-year-old is definitely on to something and it will only get better in time.

Indeed, chief executive Ivan Gazidis has reportedly reassured Emery that he won't be judged on early results and will be given the chance to turn things around, which is exactly what he needs.