Chelsea boss Frank Lampard admits there'll be changes for their clash with Aston Villa.
Chelsea must bounce back after defeat at Arsenal.
"There will be some changes," Lampard says.
"I knew that anyway and I am certainly not going to bang the drum about the quick turnaround [between the games] after our performance at Arsenal, it is not the important point, but playing two days later we have to make changes anyway and some of those will now happen as well because of how that game went.
"People have to come in and inject the energy and personality that is in our performances normally. The reason we went so many games unbeaten was because of that, and we have come off that, and we have to get back on it quickly.
"Some of it is because of where we maybe are as a squad. People wanted to talk us up as title contenders, I never accepted that was the case because we are not there, that takes time to build.
"Games like the Arsenal one are certainly ones we have to learn a very big lesson from - everybody, myself included - because when I see that in the first half I don't like it. I don't like it so it can't happen."