The Spanish coach declined the opportunity at a time when Marseille is experiencing internal upheaval, including the departure of sporting director Medhi Benatia. Alonso reportedly views the club's environment as unstable.
This comes after Marseille parted ways with Roberto De Zerbi, who had a successful debut season but saw momentum fade this year. The French club's search for a new manager continues, with Habib Beye and Sérgio Conceição among the names mentioned as potential replacements.