Kit Margetson has been at Swansea City since under-15 level.
Having made over 15 appearances for Swansea City's Under-18s last season, and being named on the bench for the under-21s on several occasions, Margetson - who signed the deal on his 17th birthday - earned himself another three years at the club whilst still being a scholar.
The young keeper also played a vital role in Wales Under-17s' triumphant European qualification back in March and the tournament in May.
Margetson is the son of Martyn Margetson, head of goalkeeping at Swansea City.