Chelsea 3-1 Crystal Palace: Maurizio Sarri feels improvements are still needed
Chelsea boss Maurizio Sarri admits striker Alvaro Morata can be "fragile" and says he still needs to improve despite scoring twice in the 3-1 victory over Crystal Palace.
MATCH REPORT: Chelsea 3-1 Crystal Palace
Watch highlights of Sunday's Premier League games on Match of the Day 2 at 22:30 GMT on BBC One and on the BBC Sport website.