As a second-half substitute, Ngumoha became the youngest player to appear in a European competition for the club.
Ngumoha was just 17 years and 19 days old when he made his European debut, breaking the previous record held by Trey Nyoni, who was 17 years and 213 days old when he played for PSV Eindhoven last season.
Liverpool's youngest European debutants are:
1 – Rio Ngumoha – 17 years and 19 days
2 – Trey Nyoni – 17 years and 213 days
3 – Phil Charnock – 17 years and 215 days
4 – Raheem Sterling – 17 years and 238 days
5 – Michael Owen – 17 years and 276 days