Chelsea defender Gary Cahill admits he was unhappy with his performance in their draw with West Bromwich Albion.
Chelsea conceded two sloppy goals in the 2-2 draw.
Cahill admitted: "I was so disappointed because we lost control in the second half and I don't know why. It went frantic for 20-25 minutes which doesn't suit us.
"I slipped twice for their first goal which I couldn't do too much about but they got the header in and we should deal with it after that. It's unlike us, we don't concede too many from set pieces."
