The Reds were last in action four days ago with a significant 2-0 win over Arsenal another injection of the feel-good factor as the gap to the top in the league was reduced to just one point.
But now all attention is back on the cup, with this a must-win to ensure Liverpool return from the break with all three competitions still on the spin.
The manager spoke of his desire to have a side “fresh enough, physically and mentally, for the game and really is going for it” in the build-up and now it’s time to show that on the pitch.
Klopp has named a nine-man bench and has plenty of options up his sleeve, and five substitutions are available to the boss tonight.
Nottingham Forest: Horvath; Spence, Worrall, Figueiredo, Colback; Yates Garner; Johnson, Zinckernagel, Lolley; Davis
Substitutes: Samba, Mbe Soh, Bong, Laryea, Cafu, Ojeda, Mighten, Silva, Surridge