Images from Michael Phelps' final Olympic swim on Saturday, as the United States won the men's 4x100m medley relay and gave the five-time Olympian his 23rd gold medal.
• More: Michael Phelps leaves in 'perfect way' – Olympics roundup
Images from Michael Phelps' final Olympic swim on Saturday, as the United States won the men's 4x100m medley relay and gave the five-time Olympian his 23rd gold medal.
• More: Michael Phelps leaves in 'perfect way' – Olympics roundup