The Pasadena native, who holds the world record in the 200-meter backstroke, became the darling of the London Olympics at age 17 with a made-for-television smile and dominant performances in the pool.
She won four gold medals and set two world records. She danced in an airplane aisle for the U.S. swimming team's "Call Me Maybe" lip sync video that went viral. She landed endorsements for swimsuits and orange juice and cereal after leaving UC Berkeley to turn professional in 2015.
But the world-beating success that seemed to come so easily didn’t continue.
She underwent surgery on both shoulders in 2017, but the pain lingered. Doctors diagnosed her with chronic tendonitis in the bicep tendon and rotator cuff, according to the ESPN account, and offered another surgery.
Franklin swam two freestyle events at the summer nationals in Irvine in July, but finished 17th and 19th.