ARSENAL have begun their pre-season training at the state-of-the-art Adidas facility in Germany.

The ‘Arena’ was opened by the sportswear company almost three years ago in Herzogenaurach, and it has now opened its doors to the Gunners.

11The ‘Arena’ appears to float in mid-airCredit: Alamy

11The Adidas campus has a swimming poolCredit: google maps

11There is also a tennis courtCredit: google maps

11There is a football pitch for Arsenal to train onCredit: google maps

11Mikel Arteta and Martin Odegaard posed alongside the head of Adidas Germany Bjorn GuldenCredit: Instagram @bjoern_gulden

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The £850million complex contains a football pitch and a top-of-the-range gym that offers CrossFit and yoga courses.

There are also tennis and basketball courts on site, as well as a running track and bouldering climbing walls.

Arsenal stars will also have access to a swimming pool and a beach volleyball court, allowing them to unwind after training sessions.

The campus is home to 5,600 employees and the futuristic design of the ‘Arena’ means it appears to float in mid-air.

It cost around £350m to construct and consists of three stories made up of “retreat-like rooms” and open spaces.

There are also meeting rooms design to look like sports terrains – one of which has synthetic turf – while there is a company restaurant that can feed up to 2,000 meals per day.

Arsenal have made use of the facilities ahead of their match against Nurnberg on Thursday.

Mikel Arteta and Martin Odegaard were spotted playing a game of keepy-uppy alongside a member of the coaching team, and the Gunners boss showed he has not lost his touch.

11The centre boasts a beach volleyball courtCredit: google maps

11The Gunners will be able to use a state-of-the-art gymCredit: google maps

11The site cost £850million to constructCredit: Alamy

11The Adidas HQ is home to 5,600 employeesCredit: Alamy

11Bouldering is another activity available on campusCredit: AFP