The Blues made the short trip across the English capital to take on their derby rivals at the London Stadium less than 72 hours after their return from Greece.
Chelsea FC were 1-0 winners against PAOK in their opening Europa League fixture of the group stage last week.
Sarri’s men were looking to maintain their 100 per cent start to the new Premier League season against a West Ham side with one win their opening five fixtures.
The Blues were unable to break down a rugged West Ham defence despite registering 17 shots on Adrian’s goal over the course of 90 minutes.
The Chelsea FC manager resisted changes in the middle of the park until the 79th minute when Mateo Kovacic replaced Ross Barkley.
However, former Liverpool FC defender Carragher believes Sarri should have made adjustments to his midfield earlier in the second half.
“I think the disappointing thing for me with Chelsea really was the changes, I felt, you talk about chances, that’s not a chance, Kante had a great chance so it shows how well West Ham done, we should give them credit for that,” Carragher told Sky Sports. “But I just think the changes certainly in the midfield area should have come earlier and we never saw Fabregas, I think Barkley came on in the 79th minute.
“And with Fabregas, I know Kante is a great player or Jorginho but one of them had to come off in order to bring Fabregas as he can thread a pass.”
Chelsea FC are in third place in the Premier League table and two points behind current leaders Liverpool FC after six games.
The Blues will welcome Liverpool FC to Stamford Bridge in their next Premier League fixture next weekend.
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