Rafael Benitez felt Liverpool deserved to beat Chelsea but said the game turned on two things with the non award of a clear penalty and the injury to Xabi Alonso.
The Liverpool manager said the decision not to award a penalty for a clear handball by Tiago was hard to take but refused to criticise the referee Mike Riley.
Chelsea manager Jose Mourinho said Liverpool should have had at least one penalty and television evidence proved two should have been given after Florent Sinama-Pongolle was hauled down in the box by William Gallas.
Benitez said: "In my opinion we played very well and controlled the first half. Two things changed the game for me, the injury to Xabi Alonso and the penalty not being given.
"I haven't spoken to the referee about the penalty and I don't like to do that or talk about the referee, but it is clear for all to see on the TV.
"At the end of the game I can only say congratulations and well done to my players for the way we played against one of the best teams in England.
"What we have to do now is keep our confidence and we need to concentrate on the next game which is Norwich on Monday."