Djukic left the club at the end of the season to take over at Valencia.
Martinez arrives from Levante, whom he left after guiding them to 11th in La Liga last season.
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Being an amiable guy is good for you and Jurgen Klopp is living proof.
Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.