The Rock, J.J. Watt, Simone Manuel

The 22-Pushup Challenge is here and spreading like wildfire. Similar to the 2014 Ice Bucket Challenge, the viral campaign is for a good cause. Participants pump out 22 pushups to raise awareness for the 22 military veterans who commit suicide on a daily basis. Then, a new group of individuals is challenged.

Thanks to Dwayne "The Rock" Johnson, the movement is shifting into the sports world. The Rock -- who heard about the challenge through Chris Pratt, who was challenged by John Krasinski – challenged comedian Kevin Hart, NFL star J.J. Watt and U.S. Olympic swimmer Simone Manuel.

Related: Olympians In The NFL: Hayes, Thorpe And More

Watt accepted and did the pushups in front of an American flag. He challenged Houston area residents Simone Biles and Jim Parsons, singer Justin Timberlake and actor/politician Arnold Schwarzenegger.

Related: Watch 15-Year-Old Michael Phelps Predict He'll Win Gold Medals

Meanwhile, Manuel, who became the first African-American woman to win an individual Olympic gold medal in this year's 100-meter freestyle, was accompanied by fellow gold medalist Ryan Murphy.

The duo challenged only one person: Michael Phelps (to do 23 pushups with his 23 gold medals on).

Thanks to the Olympics, the 22-Pushup Challenge could be headed for a global movement.

More Olympics:
-- Diving At Finish Line Isn't Just Legal, It's Smart
-- Usain Bolt On Third 100 M Gold: 'I Expect Better'
-- Michael Phelps Teaches Katie Ledecky Proper Medal-Wearing Technique

-- Follow Jeffrey Eisenband on Twitter @JeffEisenband.