A victory on Merseyside will secure the Reds a top-two spot in Group E while also forcing Toulouse to win at home to Belgians Union Saint-Gilloise to keep the battle for first place alive.
LASK caused Liverpool issues in the latter's 3-1 comeback win in the opening game of this group stage.
After defeat last time out in the Europa League, Klopp will be desperate for a more comfortable night at the office here.
Where to watch Liverpool vs LASK
TV channel: In the UK, tonight's game will be televised live on TNT Sports 1, with coverage beginning at 7:45pm GMT - after West Ham's Group E clash with Backa Topola in Serbia. Kick-off is at 8pm.
Live stream: Subscribers can also catch the contest live online via the Discovery+ app and website.
Live blog: You can follow all the action this evening via Standard Sport’s live blog.