The Reds continue to impress on all fronts, easing through to the fifth round of the FA Cup on Sunday with an entertaining 5-2 win over Norwich.
Alexander-Arnold made his return off the bench in that match after three weeks out with a knee injury, while Robertson was also introduced in the second half for his first appearance since early October having undergone shoulder surgery.
Liverpool can be expected to be particularly cautious about Robertson's fitness, after so long out, while there is also a crucial trip to Arsenal this weekend for Jurgen Klopp to keep in the back of his mind. Both therefore have to wait to make their return to the starting lineup.
Joe Gomez keeps his place at left-back, having impressed in recent weeks, while captain Virgil van Dijk comes back into the side after he was a goal-scoring substitute against Norwich.
Dominik Szoboszlai is also now available for Liverpool and he does get the nod to start, having featured for 35 minutes off the bench in the FA Cup win.
Alexis Mac Allister was not involved at all, but Klopp confirmed that the midfielder would be available to face Chelsea.
"Macca trained yesterday so should be fine," he told reporters on Tuesday.
"Thiago [Alcantara] trained which was an incredible moment after all these months - and to train at the level he does. But he needs time."
Darwin Nunez and Luis Diaz once again get the nod in the front three, with Diogo Jota's form enough to force Cody Gakpo to settle for a place on the bench.
Mohamed Salah will not return to the Africa Cup of Nations after Egypt were knocked out, but he remains sidelined with a hamstring injury.
Starting XI: Alisson, Bradley, Konate, Van Dijk, Gomez, Mac Allister, Jones, Szoboszlai, Diaz, Jota, NunezSubs: Kelleher, Gakpo, Elliott, Robertson, Gravenberch, Clark, McConnell, Alexander-Arnold, Quansah
Time and date: 8:15pm GMT on Wednesday January 31, 2024
TV channel: TNT Sports