Young Southampton winger Sufianu Sillah Dibaga has signed a new contract at the club through to 2028.
The 19-year-old is a product of the Saints academy and made his senior debut recently in their FA Cup win over Leicester at St Mary's.
Sillah Dibaga came off the bench and into the action just after the hour mark and completed the final 30 minutes and extra time.
Sufianu said: "It feels amazing. It's been a crazy week making my debut, it was a great experience.
"Now I just want to stay consistent and maintain the good performances [in the under-21s] and try to get more chances with the first team. That comes with training well and showing that I'm ready to get more minutes and perform."
At the final whistle, Southampton had five academy players on the pitch in what Tonda Eckert afterwards described as a big day for the club's academy.
Director of group talent strategy Andy Goldie said: "This tops off a fantastic week for Sufianu after making his first-team debut and he has committed his future to the club on terms befitting of the progress he has made this season.
"As with all young players, he still has a lot of work to do to make the next step in adding a sustainable impact in the first team, however if he continues to apply himself in the same way then his trajectory is very exciting."