DOHA, April 16 (Xinhua) -- With Kuryu Matsuki's early goal, a 10-man Japan team sailed to a 1-0 victory over China in the first round of group stage of the U23 Asian Cup here on Tuesday.

The U23 Asian Cup is also a qualification tournament for the Paris Olympics. The top three finishers at the U23 Asian Cup will directly qualify for the Olympics, while the fourth-placed team will face Guinea in a play-off for the last Olympic spot.