PARADISE VALLEY, Ariz. (AP) -- Michael Phelps can add getting married to his long list of accomplishments this year.
The Arizona Republic reports the 31-year-old Olympic swimming champion secretly married longtime girlfriend Nicole Johnson on June 13, a little more than a month after the former Miss California USA gave birth to their son, Boomer.
The newspaper has posted a copy of a marriage license that shows Phelps and Johnson were married in Paradise Valley, Arizona.
Neither Phelps, nor Johnson said anything about the wedding.
Johnson posted a picture of her with Phelps and Boomer on Instagram on the day of the ceremony with the caption, "Such a memorable night with my lil fambam."