AP
Michael Phelps finished third in the 100m butterfly at a Pro Swim Series meet in Charlotte on Friday, coming in behind two U.S. rivals in the event.
Tom Shields, who defeated Phelps at the U.S. Championships last year, prevailed in 52.12. Longtime Phelps challenger Ryan Lochte was second in 52.52, followed by the most decorated Olympian of all time in 52.59.
Phelps, the fastest 100m fly swimmer in the world last year in 51.17, had won the 100m fly at his previous meet this year in Mesa, Ariz., in April. He swam 52.