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Chelsea boss Jose Mourinho says that he will not be afraid to make changes if his players do not improve, following Chelsea's 2-1 loss to Crystal Palace.

Chelsea have just four points from their first four games, after a surprise loss at Stamford Bridge yesterday.

โ€œIf a player is not performing, there are two ways to look at it,โ€ he said.

โ€œThe first one is that I trust the player so much that I will wait for the improvement. You wait, wait, and wait and maybe it comes or it doesn't come.

โ€œOr, even when you are trusting the player, (there) arrives a moment when you think, โ€˜I have to change'. And I can go both ways.โ€

โ€œI'm not happy with the performance because, for me, a performance is a collective performance, of 11 players at the same time.

โ€œTo perform collectively you need individual performances. When you have these kind of matches at this level you need people to perform.

โ€I cannot say I had 11 players at the same time performing. Two or three of them their individual performance was far from good.

โ€œI blame myself for not changing one of them. When I made the third change I needed a fourth.โ€