The future of Mesut Ozil at Arsenal has long been shrouded in doubt. Those pesky rumours linking the German midfielder with a move away from North London just will not go away and Ozil's recent body language has done little to allay fears that he wants out.

Ozil has looked a shadow of the player Arsene Wenger signed from Real Madrid in the summer of 2013 and Arsenal's so-called "assist king" has been anything but, failing to register a single goal or assist in the new season.

It doesn't take a footballing legend to see that Ozil is unhappy at Arsenal but that hasn't stopped them joining the debate, with former Gunner Robert Pires stating one of the reasons for the World Cup winner's sombre mood of late.

Pires believes that Ozil was very unimpressed with Arsenal's spending over the summer transfer window after the club finished outside the promised land of the Champions League places for the first time in 16 years.

Pires, who still trains with the Arsenal first team squad, stated that even though the Gunners broke their transfer record to bring in French hitman Alexandre Lacazette, not enough was done over the summer to reshape the team.

Apart from Lacazette, Sead Kolasinac was the only other addition and he was brought in on a free transfer.

"Ozil is a warrior who wants to win something," Pires told SportBild.

"To me, he seems so angry about the fact that Arsenal hasn’t put together the team with which he can make a difference.

"They only spent money on Alexandre Lacazette. That’s not enough to compete for the top spots."

If the latest rumours are to be believed, Ozil could be headed up north to link up with former manager Jose Mourinho at Manchester United. 

With Alexis Sanchez also angling towards the exit door at the Emirates, it is set to be an uneasy couple of months for Arsene Wenger.