Lallana had been absent all season with a thigh injury until he featured as a substitute in the draw with Chelsea at Anfield at the end of November with many expecting him to be in the side from there on in.
That has not happened, though, and he has missed away victories at Stoke and Brighton and will not now feature at Anfield on Wednesday. Fears he had suffered an injury setback have been allayed as Klopp is just being cautious over the England man's return.
He said: "Adam will not be in the squad for this game, but he is on a very good way. That's what we thought actually the whole time, and we want to build him up with his fitness and all that stuff.
"He is keen, how you can imagine, but meanwhile he is old enough to know there are a lot of important years to come for him, a lot of important games to come for him, and it's not about coming somehow in the next one - it's about being best prepared for all the rest."