The 18-year-old came off the bench in the second half of the Blaugrana’s La Liga match against Athletic Club.
Yusuf Demir on Saturday became the youngest foreign player to play in La Liga in Barcelona since Lionel Messi.
The Austrian international replaced Martin Braithwaite shortly after the hour of the Blaugrana’s 1-1 draw with Athletic Club.
This is the first time the wing has appeared for the Catalan team since joining this summer.
At 18 and 80 days old, he is the youngest non-Spanish player to represent the Camp Nou team in La Liga in almost 17 years.
The Barca icon Messi was the previous youngest, having made his top flight debut for the club in October 2004 at the age of 17 years and 114 days.
Who is Yusuf Demir?
Demir joined Rapid Vienna’s Blaugrana in July in an initial loan deal that includes a € 10m (£ 9m / $ 12m) call option
He impressed in his home country after making his Bundesliga debut in 2019 and then making 38 senior appearances.
Demir scored his first match for Austria in March and came off the bench in the last five minutes of the 3-1 victory over the Faroe Islands in qualifying for the 2022 World Cup.