Chelsea boss Maurizio Sarri insists Chelsea must improve after our 2-0 Community Shield loss to Manchester City on Sunday.
“In the first half it was not too bad,” Sarri said after Chelsea’s 2-0 defeat at Wembley.
“The second half was a difference from the physical point of view. We have to work. Our pre-season has been a bit crazy so we have to work.
“I do not want to talk only about the defensive phase of the team, not just the defenders. We have to improve in the other half so the defenders can be less busy.”