Rebecca Marie Bross is an American former artistic gymnast and six-time World Championship medalist.
Bross at the 2009 World Championships
Valeri Viktorovich Liukin is a Soviet-born Kazakh-American retired artistic gymnast turned gymnastics coach. As a competitor for the former Soviet Union, Liukin was the 1988 Olympic champion in the team competition and individually on the horizontal bar, and Olympic silver medalist in the all-around and the parallel bars.
Liukin on a 1987 Soviet stamp
Valeri Liukin spotting for his daughter, Nastia, during the 2008 Summer Olympics