Megan Rapino, Brittney Griner are undermining their legacies with transgender athletes support: Riley Gaines

Former NCAA swimmer Riley Gaines calls out female athletes who support biological males competing in women's sports on 'Fox News Tonight.'

Riley Gaines, a former NCAA star swimmer at Kentucky and women's sports advocate, said prominent female athletes such as Brittney Griner and Megan Rapinoe are undermining their own legacy with their support of transgender participation in women's sports.

Discussing female athletes who have come out in favor of transgender women competing against biological females, Gaines said it "doesn't make any sense" that female crusaders in sports are trying to rob other women of the opportunities they personally enjoyed. 

"This is something that’s becoming a trend. We’ve seen Megan Rapinoe, Brittney Griner, Billie Jean King – we have her to credit Title IX – all of these women who fought for women's rights, equal opportunity, equal access, equal resources, equal pay, they are now undermining their fight, they are actively fighting to take away those opportunities from other women," she said Tuesday on "Fox News Tonight."

Riley Gaines, now a spokeswoman for the Independent Women’s Forum, famously tied Lia Thomas for fifth place in the 200 Freestyle finals at the NCAA Swimming and Diving Championships last year.  (Brett Davis-USA TODAY Sports)

Griner is the latest star athlete to support transgender participation in sports. The Phoenix Mercury center called it "a crime honestly to separate someone for any reason." Megan Rapinoe was among the current and former athletes who signed a letter to voice their opposition to the Protection of Girls and Women in Sports Act.

RILEY GAINES CALLS BRITTNEY GRINER'S REMARKS ON TRANSGENDER ATHLETE PARTICIPATION 'HEARTBREAKING'

Gaines, who emerged as an