Why did u23 Asian Championship go straight to Rio?

First, according to the rules of the Olympic men's soccer team, each team participating in the Olympic men's soccer team can only have at most three players over the age of 23, and all other players must be under the age of 23. So the Olympic team and U23 youth team are actually the same team.

Second: According to the first reason, the Asian Cup 20 16 U 23 and the Asian preliminaries of the Rio Olympic Games 20 16 were held at the same time, that is, the Asian Cup 20 16 U 23 and the Asian preliminaries of the Rio Olympic Games 20 16.

Third: According to the rules, the top three players in the 20 16U23 Asian Cup can qualify for the 20 16 Rio Olympic Games.