Oscar Kelly became Dale's third youngest ever debut during Saturday's Emirates FA Cup tie at Bristol Rovers.
He appeared as an 86th minute substitue at the Memorial Stadium, at the age of 15 years, eight months and 29 days.
Only Peter Thomas (15 years and 22 days) and Kevin Dos Santos (15 years, five months and 15 days old), who made his debut in the Papa John's Trophy earlier this season, were younger at the time of their Dale debuts.
Kelly has recently been part of Nothern Ireland Under-16s' Victory Shield campaign, having also represented his country at Under-17 level.
Congratulations, Oscar!