Both the U.S. men and women will arrive in Tokyo looking to defend gold medals from the 2016 Olympics in Rio de Janeiro when basketball begins in late July. There is a new format for the round robin-style group stage of the tournaments, a newcomer to Olympic basketball in the men’s Slovenian team — thanks to Luka Doncic — and one highly established squad looking to set another record: the U.S. women are going for their seventh consecutive gold medal.