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