Enzo Maresca has reacted to the news that Chelsea striker Nicolas Jackson has signed a new contract at Stamford Bridge. Chelsea confirmed on Friday that Nicolas Jackson, 23, has signed a two-year extension to his deal in west London. As a result, the centre-forward is under contract with the Blues until 2033, the same as teammate Cole Palmer. Journalist Fabrizio Romano recently claimed that Chelsea believe Jackson is worth a lot more than the £32m he cost. Jackson is certainly the most senior No.9 in the Blues squad when you look at the options. Alternatively, there’s 18-year-old prospect Marc…