Vieira wants to continue developing players like DNA Crystal Palace
In recent seasons Palace have produced stars such as Aaron Wan-Bissaka and Tyreek Mitchell.
Yang was promoted to the Premier League with his performances.
The club is no stranger to producing promising talent and Wilfried Zaha has developed into one of the best wingers in the league since leaving the club's academy.
Young players like Eberechi Eze and Michael Ollis came to the club from elsewhere.
And coaching at Palace allowed me to develop into a good Premier League player.
Vieira wants to continue this trend because it is 'part of the DNA' of the club.
In a press conference, Vieira said: "The development of young players and young talent is part of the DNA of this football club.
There are some young players at Palace who have come and have had good careers in the Premier League.