He worked his way through the youth system to the Under-19s and then was called up to the first team.

He came through the club's youth system, and made his debut for the club in a 4-2 3.

The team also features a productive youth system which begins at under-12 level.

At the same time, he also served as head coach for two teams of the club's youth system.

De Jong is one of several players in the current first team to come through the youth system.

After spending nearly four years in their youth system, he began training with the senior squad for the 2008-09 season.

He joined the club's youth system at the age of six on 9 August 1997.

He was subsequently brought up in the club's youth system.

In the past and now, many young players have found their way through the youth system.

The club has a youth system, which starts at Under-10s.