Arsene Wenger announces he’s staying at Arsenal next season - expert EXCLUSIVE

Price last year released The Bundesliga Blueprint: How Germany became the Home of Football and is a reliable source of football news from Germany.

Express Sport today reported on Price’s understanding that a medical for Kolasinac has already been done.

The left wing-back is set to join the Gunners on July 1 on a free transfer.

But it is the news that Arsene Wenger is staying that will turn Gunners fans’ heads.

The Frenchman has yet to sign a new contract at the Emirates despite previously insisting he’d made his mind up on his future.

Wenger's current deal expires at the end of this season.

Price exclusively told Express Sport: “This IS the kind of smart signing that Arsenal haven’t made for years. It is a proper, long-term investment.

“It was made pretty clear during negotiations that Kolasnic will be playing under Wenger next season.

“He announced that to the player and his agents, wary that speculation over his future could hinder a deal.”

Price also believes the deal is a big clue that Arsenal will continue playing three at the back next season.

He added: “The signing of Sead Kolasinac is an indication that Arsene Wenger, the most stubborn man in football, is finally ready to change.

“After dabbling with three at the back in recent weeks, the Bosnian’s arrival could indicate a more permanent switch – as he’s an actual, proper wing back, rather than a winger asked to defend.

“Though Wenger’s denied the deal is done, it is – medical and all. Word is he’s agreed a five-year-deal with the option of a sixth.

“Educated in the German youth system, Kolasinac is flexible enough to play in various positions, and can slot in to midfield, too.

“Don’t expect a glut of goals and assists from him – though he will chip in – he’ll instead offer a solid option, technically gifted enough to join in with build-up play, with the positional sense to work backwards as well as forwards.”