Photos: Tokyo Olympics Day One

Iran's Daniyal Shahbakhsh and Morocco's Mohamed Hamout fight during their men's featherweight boxing match at the Kokugikan Arena in Tokyo, on July 24, 2021. 

Tennis player Maria Sakkari of Greece in action during her first round match against Anett Kontaveit of Estonia in Tokyo.

Brazil's Marta celebrates after scoring a goal during a women's soccer match against Netherlands in Miyagi.

Georgia's Lukhumi Chkhvimiani competes with South Korea's Kim Won Jin during a men's Judo bout at the Nippon Budokan.

Tennis players cool down in the hot weather at Ariake Tennis Park.

Indonesia's Windy Cantika Aisah reacting while competing in the women's 49kg weightlifting competition.

Kazuma Kaya of Japan competes on rings during Men's Qualification at Ariake Gymnastics Centre.

Serbia's Novak Djokovic returns a shot to Bolivia's Hugo Dellien during the men's singles first round.

Cyclists ride past Yamanaka Lake during the men's road race in Yamanashi.

Italy's Rossella Fiamingo competes against Brazil's Nathalie Moellhausen in the women's individual Fencing in Chiba City.

People walk across a busy crossing during a hot afternoon in Tokyo.

Peter Burling and Blair Tuke of Team New Zealand practice in the Men's Skiff at Enoshima Yacht Harbour.

Natalia Partyka of Poland in action against Michelle Bromley of Australia during the women's Table Tennis singles.

First Lady, Jill Biden cheers on Team USA at Aomi Urban Sports Park in Tokyo.

Skateboarder Aori Nishimura of Japan in action during training in Tokyo.

The Men's Laser fleet during sailing previews at Enoshima Yacht Harbour in Kanagawa, Japan. Yesterday's opening ceremony saw competing nations greet a much smaller audience than years gone by.