The opera star, who recently performed at the Winter Olympics Opening Ceremony in Sochi, Russia, has been rehearsing to play Marguerite in a revival of Charles Gounod's show in preparation of April's (13) opening.
However, the singer has since stepped down from the job and apologised for her withdrawal.
Continue reading: Soprano Anna Netrebko Pulls Out Of Royal Opera House Show
Opera stars Anna Netrebko and Erwin Schrott have separated after six years together.
The Russian soprano revealed on Monday (25Nov13) that she and bass-baritone Schrott had agreed to "amicably" end their romance, blaming "demanding schedules and the resulting constant time apart" for the break-up.
The couple has a five-year-old son, called Tiago.