Danny Ings scored twice .
Alexander - Arnold was the star of the show at Prenton Park as Liverpool moved joint second in the Premier League table with a 3 - 0 win over a highly - rated Black Cats team .
Danny Ings scored twice , but Alexander - Arnold was the star of the show at Prenton Park as Liverpool moved joint second in the Premier League table with a 3 - 0 win over a highly - rated Black Cats team .