Marseille approached the former Bayern Munich coach following their split with Roberto De Zerbi, but Alonso declined the offer, citing concerns about the club's unstable environment amidst internal upheaval.
The Ligue 1 club's search continues with Habib Beye and Sérgio Conceição among the names being considered to replace De Zerbi, whose early exit came after a successful debut season that ended with a second-place finish.