The former Australia international wants to see the Reds capitalize on playing their Europa League second leg in front of their home supporters.
Harry Kewell has urged former team Liverpool to use the Anfield crowd to its advantage against Borussia Dortmund on Thursday.
Jurgen Klopp's men are well-placed to advance in the Europa League after a 1-1 draw in Germany in the first leg of their quarterfinal tie.
Kewell, who spent five seasons at Liverpool, told Omnisport the advantage of playing at home in the second leg could prove decisive for the Premier League giants.