Former Miss California Nicole Johnson Breaks Up With Olympic Hero Michael Phelps (Photos)Michael Phelps is on the market.

The New York Post reports that the Olympic hero has broken up with his longtime girlfriend, former Miss California Nicole Johnson.

“The couple broke up a few weeks ago, and Phelps is telling friends he’s single,” writes the Post.

The 26-year-old swimming champ and the former pageant queen had been dating on and off for several years, according to the Post, and she had even traveled with him to the FINA World Championships in Shanghai in July.

Check out photos of the former Miss California by clicking here>>