Alexander Isak scored his first goal for Liverpool while Hugo Ekitike was sent off after bagging a late winner as the hosts beat second tier Southampton 2-1 at Anfield to reach the fourth round of the League Cup on Tuesday. The Swede, a record 125 million pounds ($169.04 million) signing from Newcastle United, opened his account in the 43rd minute -- 38 seconds after Southampton's Adam Armstrong had hit the crossbar -- off a Federico Chiesa pass. Southampton hit back through Shea Charles in the 76th after a glaring error by midfielder Wataru Endo but Ekitike, who replaced Isak at halftime, maintained Liverpool's unbeaten start to the season with a winner four minutes from time. He was then sent off...