Barcelona-linked Unuvar makes Ajax history with debut goal
Aged 16 years and 223 days, attacking midfielder Unuvar was introduced for the final 15 minutes in Amsterdam and rounded out a 7-0 rout after he was brought down in the box.
Unuvar's record-setting goal might be of interest to Barcelona, who reportedly monitored the Netherlands youth international during last year's U-17 World Cup.
"I immediately asked Klaas-Jan Huntelaar if I could take the penalty, because he would normally take it," Unuvar told Fox Sports Netherlands after the match.
"It was great that everyone let me [take it] and was happy for me. The keeper went to the wrong corner. It was a really nice moment."
Siem de Jong led the way for Ajax with a perfect hat-trick in the dominant last-16 victory, while Lassina Traore scored twice and Dusan Tadic netted the other.