Ramon an option in Chelsea centre-back hunt

[Getty Images] Chelsea are aiming to rebuild their defensive line under new manager Xabi Alonso this summer. The Blues want to add at least one central defender to their squad - amid interest in Trevoh Chalobah from Serie A club Como - and Crystal Palace 's Maxence Lacroix is emerging as a key target. Another option being considered by Chelsea is 21-year-old Como centre-back Jacobo Ramon. Ramon is also still linked to former club Real Madrid through various clauses, while the Spanish giants have made Chelsea midfielder Enzo Fernandez, valued by the Blues at £120m, one of their key targets this summer. Chelsea have already sold Marc Cucurella to Real Madrid for £51.8m, and are set to complete the signing of Atalanta defender Marco Palestra for a fee in excess of £43m. It is all part of a major summer of player sales, defensive departures and improvements for Chelsea before the official arrival of Alonso.