By Sean Walsh Chelsea have announced Enzo Maresca as their new head coach on a five-year contract with the option for a further 12 months. The Italian departs Leicester City after only one season at the King Power Stadium, leading the Foxes to promotion back to the Premier League as Championship winners. Prior to that, he spent half a year in charge of Italian side Parma, winning only four games out of 14 before being sacked. Earlier in his career, Maresca spent time as manager of Manchester City’s Elite Development Squad and on Pep Guardiola’s coaching staff. Maresca told Chelsea club channel…