"Arteta needs to learn fairly quickly, let's be honest."

The ex-Gunner also refuted a common narrative during the latter years of Arsene Wenger's reign at the club.

The Thiago to Liverpool rumours have swirled, but this Arsenal figure isn't so sure the Spaniard will even make the starting eleven.

Arsenal academy manager Per Mertesacker has revealed what Mikel Arteta demanded of him when he arrived back at The Emirates in December

Per Mertesacker has defended the 'genius' of Mesut Ozil, but admits he can well understand Arsenal fans' frustrations.

Mesut Ozil faces an uphill battle to win his place back at Arsenal, a former teammate has revealed.

Former Arsenal defender Per Mertesacker has admitted his regret that the players didn't do more to help Arsene Wenger

Arsene Wenger has defended Per Mertesacker after the defender admitted he would burden Arsenal by playing for the side at the moment.

Arsenal defender Per Mertesacker has admitted that he would rather sit in the stands than play for the club at the moment

Arsenal defender Per Mertesacker has revealed how the burden of needing to perform on a match day brings him close to throwing up.

Arsenal defender Per Mertesacker says that it is his responsibility to make the club's players want it more.

Per Mertesacker insists all Arsenal players are committed to the cause, despite the uncertain futures of Mesut Ozil and Alexis Sanchez

Per Mertesacker has revealed Gary Cahill visited him in the dressing room after the Arsenal man ended up with a deep cut on Sunday.

Per Mertesacker has no doubt that Alexis Sanchez will "definitely" remain at Arsenal this summer.

Per Mertesacker has revealed how his "double act" with Rob Holding helped keep Chelsea star Diego Costa at bay during the FA Cup final.

Per Mertesacker lifted the FA Cup for Arsenal on Saturday before insisting any criticism aimed his way only makes him a better player.

Per Mertesacker will feature in a back three for the first time in his life should he make Arsenal's starting XI for the FA Cup final.

Arsenal’s Per Mertesacker has revealed he has no idea if he is fit enough to start Saturday’s FA Cup final against Chelsea.

Arsenal captain Per Mertesacker admits Lincoln demand respect for their FA Cup exploits this season as the pair meet on Saturday.

Arsenal boss Arsene Wenger interjected a question posed to Per Mertesacker on the Frenchman's future on Monday afternoon.

Arsene Wenger has confirmed that Per Mertesacker has signed a one-year contract extension at Arsenal.

Arsene Wenger has revealed Arsenal intend to offer contract extensions to two of the club's key players - despite their lengthy absences.

Arsenal defender Per Mertesacker has no interest in leaving the Gunners, despite his contract expiring at the end of the season.

Hannover director Martin Bader has revealed that the club would be very interested in bringing Per Mertesacker back to his hometown club.

Arsenal defender Per Mertesacker admits he could listen to transfer offers in January after providing a positive update on his knee injury.

Per Mertesacker has been named Arsenal's new captain despite facing five months on the sidelines with a knee injury.

Arsenal are facing an injury crisis ahead of the new season with Per Mertesacker missing from the US tour and possibly out for five months.

Per Mertesacker has spoken of his fears that Arsenal could get left behind as their title rivals continue to spend vast sums on new players.

Granit Xhaka's leadership qualities and midfield attributes have been talked up by his new Arsenal team-mate Per Mertesacker.

Alex Oxlade-Chamberlain has become the first definite England casualty of Euro 2016 after being ruled out for up to two months.

Per Mertesacker admits Alexis Sanchez's two-month injury absence hit Arsenal hard, and potentially cost them title glory.

Arsenal defender Per Mertesacker has explained why he believes the Gunners can still win the Premier League this season.

Per Mertesacker insists Arsenal's season is not over - but has called on the club's goalscorers to rediscover their killer instinct.

Per Mertesacker has refuted accusations that Arsenal's players are too nice and that the squad lacks the belief to win the Premier League.

Per Mertesacker insists Arsenal will not feel sorry for themselves after their defeat to Barcelona when they go to Man Utd at the weekend.

Arsenal captain Per Mertesacker says they "still have a chance" of qualifying for the Champions League quarter-finals.

Per Mertesacker admits Arsenal need to be more clinical to beat Barcelona after a frustrating goalless draw against Hull City.

Arsene Wenger has hailed the infuence of German duo of Per Mertesacker and, surprisingly, Mesut Ozil in the Arsenal dressing room.

Per Mertesacker says he 'takes care of the team' as Arsenal vice-captain, but he reckons the squad is "much more resistant" than in the past

Per Mertesacker says Mesut Ozil has become so crucial to Arsenal that they try to pass the ball to him "every single time" they attack.

Per Mertesacker is doing his best to temper the title talk at Arsenal - but admits they are showing they can win games in different ways.

Per Mertesacker insists Arsenal are ready to overcome their "nightmare" start to the Champions League and achieve "special things".

Per Mertesacker has revealed that Arsenal's players were "knackered" as they laboured to a draw at home to rivals Tottenham.

Per Mertesacker says the lack of a gap between Arsenal and the top of the Premier League is making the players more determined not to lose.

Per Mertesacker says Arsenal can still rebuild their Champions League hopes despite the prospect of a double header against Bayern Munich.

Per Mertesacker admits that Arsenal lacked "discipline and concentration" in their Champions League defeat to Olympiacos.