Liverpool have been drawn to face Stoke, while Everton will face Manchester City in the Capital One Cup semi-finals.
Jurgen Klopp’s Reds destroyed sorry Saints 6-1 at St Mary’s in their quarter-final meeting on Wednesday, with a Daniel Sturridge double, a Divock Origi hat-trick and a superb Jordon Ibe effort finishing the hosts off.
It means Liverpool, who will make a record 16th appearance in the last four, face the Potters, who have not reached this stage since winning the competition in 1972.
Liverpool’s city rivals Everton, who have never won the League Cup, face 2014 winners Manchester City in the other semi-final.
The first legs will be played on January 5/6, while the second leg will be on January 26/27.