Chen Meng knocked off countrywoman Sun Yingsha four sets to two in a furious battle for gold in the women’s singles tournament. #NBCOlympics #Tokyo2020 #TableTennis » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch live Olympic coverage on NBCOlympics.com: https://www.nbcolympics.com/schedule NBC…