The Daily Mail is reporting that the Greece international is very close to a move to the north London side in the current transfer window.
The same article states that Arsenal want to improve their defensive options this summer following a difficult final season under Arsene Wenger.
According to the same report, Papastathopoulos is on the verge of becoming the second summer signing of Emery’s reign.
Arsenal finished in sixth place in the Premier League table last term to miss out on Champions League football for the second successive season.
The Gunners haven’t won the Premier League title since 2004 after Wenger’s men finished the season without losing a top-flight game.
The north London side lost 3-0 to Premier League champions Manchester City in the League Cup final at Wembley to end Wenger’s final season at The Emirates without silverware.
Arsenal signed Borussia Dortmund striker Pierre-Emerick Aubameyang and Manchester United midfielder Henrikh Mkhitaryan in the January transfer window.
The Gunners signed experienced Switzerland international Stephan Lichtsteiner in a free transfer from Serie A giants Juventus earlier this month.
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