She is the 2010 World Champion on floor and the 2009 World Championships silver medalist on balance beam and floor .
Lauren Mitchell Lauren Mitchell ( born 23 July 1991 ) is an Australian artistic gymnast .
Lauren Mitchell is the 2010 World Champion on floor and the 2009 World Championships silver medalist on balance beam and floor .
Lauren Mitchell Lauren Mitchell ( born 23 July 1991 ) is an Australian artistic gymnast .