Gabrielle Douglas says she was the target of racist at the gym she trained.

Gabrielle Douglas, the Olympic gold-medal gymnast, says she was the target of racist bullying at the gym where she first trained. She revealed the claims to Oprah Winfrey on her OWN show, "Oprah's Next Chapter." The Virginia gym, Excalibur Gymnastics, has fired back, denying the allegations.

Gabrielle -- who says she prefers to be called by her full name, even though her fans call her Gabby eventually moved to Iowa to train with Shawn Johnson's Olympic coach. The Olympian told Winfrey in the interview that the girls at the Virginia gym called her a "slave."

Gabrielle recalled, "One of my teammates was like, 'Can you scrape the bar?' And they were like, 'Why doesn't Gabby do it, she's our slave?'" She added, "I definitely felt isolated, I felt 'Why am I deserving this? Is it because I'm black?'"

The 16-year-old said she finally left the gym when she was 14: "I was scared at my old gym to show my potential… I was just holding back."