Leicester 0 Southampton 0 (Leicester win 6-5 on pens)
Ireland striker Michael Obafemi notched up another appearance for Southampton but Mark Hughes' team crashed out of the League Cup to Leicester City on penalties last night.
The 18-year-old Dubliner was substituted for Manolo Gabbiadini in the 89th minute as the game went to penalties at the King Power Stadium.
There were 10 successful kicks before Danny Ward saved Gabbiadini's attempt. Nampalys Mendy then scored to put Leicester through to the last eight, where they will host Manchester City on December 18.
It was harsh on Southampton, who had the better chances to win the tie during 90 minutes. But Leicester progressed in the tie rearranged in the wake of the helicopter crash which killed chairman Vichai Srivaddhanaprabha.
It was clear that Yan Valery was in for a busy evening as Demarai Gray looked lively as Leicester began on the front foot. The Saints survived and created a good opening when Ward had to be quickly off his line to block Obafemi's effort with his feet.
Jamie Vardy endured a frustrating first-half but almost caught a lucky break in injury-time. He got in behind the defence and his cut-back was nearly steered into his own net by Vestergaard.
Nathan Redmond turned Caglar Soyuncu and Danny Simpson inside out on a mazy run into the penalty area and his shot struck the underside of the crossbar. Obafemi was unable to turn in the rebound on the half-volley.
Shortly afterwards, Pierre-Emile Hojbjerg's effort from the edge of the box brought a decent save from Ward.
Leicester's best moment came with 10 minutes remaining. Gray ran beyond Steven Davis and Cedric Soares before flashing a shot narrowly wide from 20 yards.
Southampton thought they had broken the deadlock when a weaving run from Redmond was finished off by Davis, but the goal was ruled out by VAR after Redmond was adjudged to have handled the ball.
There was still time for another VAR review at the other end when Evans went down under a challenge but no penalty was awarded.
A superb fingertip save from Ward to divert Gabbiadini's late free-kick on to the crossbar ensured the tie went to penalties, when Ward was the hero again - denying Gabbiadini once more.