Phelps spent most of the Olympic swimming contest beating swimmers he had inspired into the pool. But Schooling, who was photographed with Phelps as a 13-year-old, stepped out of line in the 100m butterfly, spoiling the US legend's all-win record in Rio.
"It's incredible," Phelps said Monday of falling to a swimmer 10 years his junior, who unabashedly points to the American great as his inspiration and role model.