The Liverpool full-back put in an entirely dominant display on EA SPORTS FIFA 20 to beat musician Tom Grennan 5-1.
Alexander-Arnold will now face Christian Atsu of Newcastle United on Friday in the last eight of the competition.
Reacting to the win, the No.66 said: "First half he had more chances and shots than me but Alisson saved me with big saves.
"In the second half I came out and scored a few more goals, and that was the game really. I was gutted at the end with the goal conceded.
"I feel like I'm a decent FIFA player, so I'll have a go against anyone and see how far I get."