The French outfit announced the news via their official Twitter account on Tuesday afternoon as they confirmed a deal to bring Diaby to the Stade Velodrome has been agreed in principle.
— Olympique Marseille (@OM_Officiel) July 28, 2015
The 29-year-old, who was linked with a transfer to fellow Premier League side West Brom last week, had been a free agent since being released by the Gunners at the end of last season following nine years in North London, but was let go due to his wretched recent injury record.
Last season Diaby made just one senior appearance for the 2015 FA Cup winners as he was named in manager Arsene Wenger’s starting XI for the Capital One Cup tie against Southampton at the Emirates Stadium and lasted for just over an hour before being replaced by Santi Cazorla.
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His return to France is likely to be his final chance at forging a career at the highest level in European football and he will be hoping to steer clear of injuries and prove why he was once regarded as the ‘next Patrick Vieira’.