An Olympic athlete who won a silver medal at the Tokyo Olympic Games in 2021 has complained about the quality of the metal used, saying it has turned into 'scrap' after just two years. The Chinese athlete Zheng Pengfei complains about his Tokyo Olympic silver medal oxidized after two years of storage, undated. He is the runner-up in the 1,000-meter double rowing event at the Tokyo Olympics. (AsiaWire) According to…