Michael Phelps & Son Boomer: The Pictures You Need to See

Michael Phelps may be known to much of the world as the most decorated Olympian of all-time, but he's also doing pretty well in his new role as a father. Three months before Phelps took to Rio for the 2016 Summer Olympics, he and his fiancée Nicole Johnson welcomed to the world their son, Boomer Robert Phelps. Now in his fifth Olympic Games, the 31-year-old Phelps has peace in his personal life that he didn't have when he won his first 22 Olympic medals. "This Saturday, when I was at the meet, I was probably in the worst mood I’ve been in in a long time after a race," said Phelps in a June interview. "That was thrown out the door when I was able to see (Nicole and Boomer) on Sunday. It’s a different mentality now than I’ve had in the past." You can click through the gallery to see and learn more about Phelps and his new son. (Getty)