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2012 U.S. Olympic Track & Field Team Trials - Day 3

EUGENE, OR - JUNE 24: Justin Gatlin celebrates after winning the men's 100 meter final in front of Ryan Bailey on Day Three of the 2012 U.S. Olympic Track & Field Team Trials at Hayward Field on June 24, 2012 in Eugene, Oregon. (Photo by Christian Petersen/Getty Images)

Olympic comeback kids

Just call it a comeback. The recent swimming, track and gymnastics trials offered plenty of stories of athletes overcoming a setback -- ranging from injuries to drug-related suspensions to gunshot wounds -- to earn their ticket to London. -By Pauline Vu