The 29-year-old Greece international has a year left on his contract with the German Bundesliga side.
It is the latest step in Arsenal’s drive to rebuild their defence with experience and leadership.
The Gunners are also working on a deal to sign Switzerland right-back Stephan Lichtseiner, 34, on a free transfer from Juventus.
The Premier League club intend to bolster their squad with signings who are immediately ready for first-team football and, over time, continue to recruit younger players for the medium to long term.
An example is Papastathopoulos’ countryman Konstantinos Mavropanos, 20, who joined in January and was the first signing overseen by new head of recruitment Sven Mislintat, formerly chief scout at Dortmund.
That month Arsenal also brought in Pierre-Emerick Aubameyang from Dortmund and Henrikh Mkhitaryan – yet another ex-Dortmund player.
Former Genoa and AC Milan defender Papastathopoulos continues the trend and will help compensate for the loss of captain Laurent Koscienly to an Achilles injury.
The departure of manager Arsene Wenger and arrival of head coach Unai Emery has seen Arsenal adopt a continental model in which Mislintat will lead on recruitment alongside Emery, head of football relations Raul Sanllehi and chief executive Ivan Gazidis.
Emery will contribute to the decision-making process and retain power of veto, while it is understood proposed signings were discussed with head coach candidates during the interview stage.
A Freelance Journalist, Entrepreneur and Philanthropist. Editor-in-Chief of www.233times.com. A contributory writer for Ghanaian Chronicle Newspaper. An alumnus of Adisadel College where he read General Arts. He holds first degree in Bachelor of Arts from the University of Ghana; Political Science (major) and History (minor). He has also pursued MSc Corporate Social Responsibility (CSR) and Energy with Public Relations (PR) at the Robert Gordon University in the United Kingdom. He is a 2018 Mandela Washington Fellow (YALI) who studied at Clark Atlanta University on the Business and Entrepreneurship track. His mentors are Rupert Murdoch, Warren Buffet, Sam Jonah, Kwaku Sakyi Addo and Piers Morganview all posts by: Nana Kwesi Coomson
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