Vashti Cunningham practices the high jump at the University of Nevada Las Vegas's Sheila Tarr Track on June 21. Cunningham, 18, set a world junior record in March and is expected to make the U.S. Olympic team this weekend.
Bridget Bennett for NPR
Michael Phelps celebrates qualifying for his fifth Olympic Games, after winning the men's 200-meter butterfly at the U.S. Olympic swimming trials Wednesday in Omaha, Neb.
Mark J. Terrill/AP
Tennessee Head Coach Pat Summitt of Tennessee celebrates with her son Tyler after the Lady Volunteers defeated Georgia in the championship game of the NCAA Women's Final Four in 1996.
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Cyclists in this year's Tour de France will face new controls for what organizers call "technological fraud." Here, elite cyclists are seen riding in the Paris-Nice race in March.
Kenzo Tribouillard/AFP/Getty Images
Sports Minister George Hilton (top right) visits the Brazilian Doping Control Laboratory in Rio de Janeiro last month. The lab, which had been set to test samples from Olympic athletes in August, has been suspended by the World Anti-Doping Agency.
Intelligence officer Tory Garcia, who has a background in gymnastics and diving, works through the obstacle course on American Ninja Warrior, which airs on NBC and Esquire Network.