Elsewhere on day 15 of the Games, China's world number one Zhang Yining won back-to-back table tennis golds, after defeating team-mate WangNan to hand the hosts a clean sweep of the medals in the women's singles.
Another gold medal was added Friday when WangNan and Zhang Yining converted the second of five match points to defeat the South Korean penhold pair Seok Eun-mi and Lee Eun-sil 11-9 11-7 11-6 11-6 in the women's table tennis doubles.
Pro-DPP Taipei political commentator Wang Hsing-ching (pen name Nan Fang-shuo), however, believes that Mr Su and the DPP's forte does not lie in foreign affairs.