Chelsea manager Frank Lampard told BBC Sport: "There is a lot of reactionary stuff about us because of expectation. After West Brom people wanted to react. I don't and even after today I won't react too much, we are still working.
"I do think people have to remain calm. That's how I have to be, I can't get caught up in it. It's my job not to be reactionary and not get too upset or down. We got a lot of credit for coming fourth and now people have to stay calm, we are not going to go from there to 100 instantly."
On Abraham's dispute over taking a penalty, he added: "I don't mind Tammy's exuberance but that has been dealt with by Azpilicueta and then me in the dressing room. I don't mind a bit of conflict in the moment but it has been dealt with and won't happen again."
Crystal Palace boss Roy Hodgson said: "We were our own worst enemy today, with the two penalties. The only one you could say [was a good goal] was the Zouma header, from a looping cross, but even there you would hope your centre-backs could deal with it. In the end we find ourselves on the end of a heavy beating.
"As a team we were nowhere near as good as we need to be to come to Chelsea and cause them problems."