A fist raised and a knee taken: US gold medalists Gwen Berry and Race Imboden protest trump racism and gun violence Epidemic at Pan Am Games

"Somebody has to talk about the things that are too uncomfortable to talk about. Somebody has to stand for all of the injustices that are going on in America and a president who's making it worse," said hammer thrower Gwen Berry.

Drawing global praise for taking symbolic stands against injustice and violence, a Gold Medalist hammer thrower as well as  a member of the Gold Medal-winning men's U.S. Fencing Team—as other politically-engaged athletes have done in the past—staged individual protests during ceremonies at the Pan Am Games over recent days to call attention to their country's racism, mistreatment of immigrants, and ongoing gun violence epidemic.

"We must call for change," tweeted 26-year-old Race Imboden on social media as he shared images of his protest which took place Friday at the internatioal games in Lima, Peru.

"A president who spreads hate are at the top of a long list" of the nation's woes, Imboden explainedin a subsequent tweet.  "I chose to sacrifice my moment today at the top of the podium to call attention to issues that I believe need to be addressed. I encourage others to please use your platforms for empowerment and change."

Imboden wasn't alone in protest at the games as his protest on Friday was followed Saturday by hammer thrower Gwen Berry, who raised her fist in protest on the podium as the Star Spangled Banner played following her Gold Medal win:

As USA Today sports columnist Nancy Armour points out:

The life of an Olympic athlete is one of endless sacrifice.

For hammer thrower Gwen Berry and fencer Race Imboden, their principles won't be among them.

Berry and Imboden are almost sure to be disciplined for their protests on the medals stand at the Pan American Games. Berry raised her fist during the Star-Spangled Banner after winning gold Saturday, one day after Imboden took a knee during the men's team foil medals ceremony.

"Somebody has to talk about the things that are too uncomfortable to talk about. Somebody has to stand for all of the injustices that are going on in America and a president who's making it worse," Berry told USA TODAY Sports on Saturday night.

"It's too important to not say something," Berry added. "Something has to be said. If nothing is said, nothing will be done, and nothing will be fixed, and nothing will be changed."

While the United States Olympic & Paralympic Committee said Saturday it was "disappointed" Imboden had broken a pledge the U.S. team athletes take concerning political demonstrations—warning that "consequences may result"—many people who shared his and Berry's concerns about the current political situation in the U.S. thanked them for their high-profile demonstrations.