Japan's Miki Ishii and Megumi Murakami won the first women's match of the beach volleyball tournament at the Tokyo Olympics by default after their Czech opponents withdrew due to Covid-19.

Novak Djokovic launched his pursuit of Olympic gold with a 6-2, 6-2 victory over Bolivia's Hugo Dellien in the first round of the Tokyo Games on Saturday.

China's Zhihui Hou won the gold medal in women's 49-kg weightlifting at the Tokyo Olympics, bagging the second gold for China in as many competitions, with a comfortable win over Indian and Indonesian medalists.

Ice-cold Chinese shooter Yang Qian claimed the first gold of the Tokyo Games on Saturday, keeping her cool while Russian Anastasiia Galashina lost hers in a dramatic finale.

Archers Ruman Sana and Diya Siddiqui were eliminated from the pre-quarterfinal stage of recurve mixed event of the Tokyo Olympics on Saturday morning.

Guinea cancelled its participation in the Tokyo Olympics on Wednesday due to the Covid-19 pandemic, the west African state's sports minister announced.

The pandemic-postponed Tokyo 2020 Olympics began on Wednesday with Japanese women's softball pitcher Yukiko Ueno getting Games competition underway in what the head of the World Health Organization said was needed as "a celebration of hope".