Xabi Alonso insists Liverpool cannot afford to repeat the mistakes made in Boxing Day's narrow victory over Derby if they are to mount a Premier League title challenge.
Steven Gerrard turned in another captain's display at Pride Park as he struck a last minute winner after James McEveley had cancelled out Fernando Torres' first half opener.
"We probably should have scored and killed the game and then in the second half we struggled a bit," Alonso told Liverpool's official website.
"We have to think and try not to be in that position again because we had chances to win the game before the goal.
"We have to learn and not repeat what happened at Derby again."