Liverpool endured more cup frustration when Southampton won the first leg of their League Cup semifinal 1-0 today. Close Modal DialogThis is a modal window. This modal can be closed by pressing the Escape key or activating the close button. Share: Watch: Southampton’s Nathan Redmond stuns Liverpool with early strike in League Cup Southampton won the first leg of their League Cup semi-final 1-0 today against Liverpool.

Nathan Redmond scored the only goal in the 20th minute and Southampton could rue not building a stronger lead to take to Anfield in two weeks' time.

Liverpool was struggling against a Premier League rival — unlike on Monday, when fourth-tier side Plymouth drew 0-0 at Anfield in the FA Cup to force a replay.

Liverpool is competing for silverware on three fronts domestically in Juergen Klopp's first full season in charge, with Liverpool second in the Premier League and pursuing a first English title since 1990.

The difficulties in the cups have come ahead of one of the biggest games of the club's season Monday against northwest rival Manchester United in the league.