Ukrainian National Youth Competition

The Ukrainian National Youth Competition is split into four (4) age groups which in turn has the Supreme and the First Leagues. The Supreme Leagues consists out of four regional groups and the First have eight. The competition's oldest age group has the teenagers who are no older than 17 years old and the youngest - the teenagers no older than 14.

The league is composed of teams with players between ages under 14 through under 17. Each club of the Ukrainian Premier League is obligated to field four of its junior teams in the league.

...
Wikipedia