by Peter HUTCHISON RIO DE JANIERO, Brazil (AFP) — Taiwanese weightlifter Hsu Shu-ching sensationally grabbed gold at Rio Sunday and then immediately called on Olympic chiefs to hurry up and upgrade her silver medal from the London 2012 Games. Hsu pipped Chinese favourite Li Yajun to first place in the women’s 53kg class, four years after she was undone by Kazakh lifter Zulfiya Chinshanlo who later failed a doping test. Chinshanlo was provisionally suspended by […]