Frank Lampard has expressed his anger after the blues lost to Arsenal 3-1 in the Premier League on Saturday.
Alexander Lacazette opened the scoring from the spot after Reece James fouled Kierrian Tierney.
Granit Xhaka added the second goal with a superb free-kick before Bukayo Saka scored a wonder goal as the Gunners raced to a 3-0 lead.
Tammy Abraham scored a consolation goal for Chelsea, Jorginho missed a late penalty.
The players have to take responsibility for that first half.” Pressed on whether rotation will be necessary ahead of Chelsea’s meeting with Aston Villa at Stamford Bridge on Monday, Lampard said: “Some places, it certainly does.