She followed in her brother 's footsteps .
In 1908 , Nijinska was admitted to the Imperial Ballet ( then also known as the Mariinsky Ballet and later known as the Kirov Ballet ) .
Nijinska followed in Nijinska 's brother 's footsteps .
In 1908 , Nijinska was admitted to the Imperial Ballet ( then also known as the Mariinsky Ballet and later known as the Kirov Ballet ) .