ARGENTINA’S Leticia Boscacci, back, spikes against Cynthia Barboza of the U.S. during their women’s World Grand Prix volleyball match in Bangkok, Thailand on June 23. The tournament is a tuneup for the Olympic games.

JUSTIN GATLIN celebrates with his son, Jace, after winning the men’s 100 meter finals at the U.S. Olympic Track and Field Trials on June 24 in Eugene, Ore.

RYAN LOCHTE starts in the men’s 200- meter freestyle preliminaries at the U.S. Olympic swimming trials on June 26 in Omaha, Neb.

GABBY DOUGLAS competes on the uneven bars during the women’s senior division at the U.S. gymnastics championships in St. Louis on June 10. Douglas has emerged as world champion Jordyn Wieber’s main rival, and is the brightest star on a powerful U.S. team that could turn the London Olympics into its own heavy medal show.

MASON CATHEY leads the way during a women’s 3,000-meter steeplechase preliminary at the U.S. Olympic Track and Field Trials on June 25 in Eugene, Ore.

SIERRA KUHN swims in the women’s 400-meter individual medley preliminaries at the U.S. Olympic swimming trials on June 25 in Omaha, Neb.

ASHTON EATON and Curtis Beach react after the 1,500 meter race during the decathlon competition at the U.S. Olympic Track and Field Trials on June 23 in Eugene, Ore. Eaton finished the decathlon with a new world record.

THE UNITED STATES Olympic diving team reacts as they are congratulated with a balloon drop at the conclusion of the trials on June 24 in Federal Way, Wash. From left are Katie Bell, Brittany Viola, Chris Colwill, Christina Loukas, Cassidy Krug, Kristian Ipsen, Troy Dumais, David Boudia, Nick McCrory, Abby Johnston and Kelci Bryant.