Ukraine has begun a boycott of international judo events because the Russian team was allowed to compete as Olympic qualification began on Friday.
Yohan Blake turned back the clock and Elaine Thompson-Herah had a winning streak snapped in the Jamaica Track and Field Championships 100m finals.
Fred Kerley ran the world's fastest 100m this year and won the USATF Outdoor Championships. Allyson Felix eked into the 400m final.