Naples, May 28 - Rafa Benitez has vowed that Napoli will be fighting for trophies under him after the Serie A club announced that the Spaniard is their new coach. "Now that the agreement is confirmed, I can say I am very happy and very satisfied for having committed to a great club with an illustrious heritage like Napoli," Benitez said on his website. "I look forward to experiencing each and every one of the fans of Napoli and their strong support for this project that we will begin. "I'm happy to become a member of that great family of Naples and thus we can share the triumphs together. "We will begin from the start as we mean to go on and we will fight from the beginning to achieve success for the fans of SSC Napoli". Benitez, 53, returns to Italy following a brief stint at Inter in 2010 after they won the Champions League-Serie A-Italian Cup treble under Jose Mourinho. He led Inter to victory in the 2010 Italian Supercup and at the Club World Cup but left after criticising the club's transfer-market moves amid erratic form in Serie A. He won two Spanish league titles and a UEFA Cup in charge of Valencia from 2001 to 2004 and steered Liverpool to victory in the Champions League in 2005. He also won the Europa League this month as interim boss of London club Chelsea boss. "I understand the history of the city and how the club forms a fundamental part of the culture and traditions of Naples," said Benitez. "I must confess that I am extremely excited because I can share my passion for football with the fans of Napoli; it is proven that they are very, very special". Benitez replaces Walter Mazzarri, who left Napoli after four successful years and has taken over at Inter. Napoli came second in the Serie A season that just ended under Mazzarri to qualify for next season's Champions League.