Enzo Maresca wants Chelsea to sign a centre-back to replace the injured Levi Colwill.England international Colwill is set to miss most of the new season after suffering an ACL injury in training.Tosin Adarabioyo and Trevoh Chalobah are poised to start in central defence against Crystal Palace in the Premier League opener on Sunday.

Enzo Maresca wants Chelsea to sign a centre-back to replace the injured Levi Colwill.England international Colwill is set to miss most of the new season after suffering an ACL injury in training.Tosin Adarabioyo and Trevoh Chalobah are poised to start in central defence against Crystal Palace in the Premier League opener on Sunday.