Patrik Raitanen struck for Liverpool U18s in their 6-2 rout of Rapid Vienna.
The centre-back, who agreed a deal to join the Reds last year, moved from FC Jazz in his homeland. He signed for Liverpool this month after turning 16.
Okera Simmonds struck twice, with Rafael Camacho, Curtis Jones, Raitanen and Glen McAuley also on the mark.
Summer recruit Raitanen netted his first goal in a red shirt from a well worked corner.
It marked another victory for Steven Gerrard, who took charge of the U18s last month.