michael phelps olympics
He won't encore at the 2020 Olympics, but he has a lofty goal
Phelps has done pretty well for himself since then.
The 31-year-old now has an unprecedented 23 medals with two silvers and two bronzes filling out his tally.
"I never realized my greatness until Michael Phelps broke my record."
WHAT'S HAPPENING
Phelps heads to Rio for his fifth and final Olympics, qualified in three events.
Phelps is now the first male U.S. swimmer to make five consecutive Olympics.