The former Real Madrid and Bayer Leverkusen boss takes over after Liam Rosenior was sacked last month.
It’s understood the 2010 World Cup winner has been promised a say in all of the club’s transfer business moving forward.
Sports reporter Kaveh Solhekol highlights what makes Alonso such an attractive choice as new boss.

He’s recently been heavily linked with a move to his former club Liverpool, who have also struggled this season.