su-wei never planned to play singles. She will be playing mixed with Lu (ATP around #90 something) and double with chin-wei. Taiwanese tennis association wants to maximize our chances of getting the gold medals. Since each player can only play in two events, they think su-wei (and originally YJ Chan as well) should focus on the doubles and and mixed doubles. I don't quite agree with this strategy because Hsieh can definitely do well here in singles.