Mark Spitz tries to show up Katie Ledecky

"Nearly 50 years after he made Olympic history at the 1972 Games in Munich, Mark Spitz still enjoys a challenge. Answering Katie Ledecky’s recent effort of swimming without spilling the glass of chocolate milk she was balancing on her head, Spitz showed he still has impressive form. The 11-time Olympic medalist posted a video to his Twitter account on Saturday that showed him balancing a glass of water while he swam in a backyard pool."