The ROH has announced:
Bulgarian soprano Sonya Yoncheva is forced to withdraw from the first four performances of La traviata on 18, 22, 25 and 28 May. She is suffering from postpartum-induced anaemia and has been ordered by her doctors to observe a period of complete rest and rehabilitation.
Latvian soprano >Marina Rebeka will now sing the role of Violetta Valéry for these performances, in addition to her scheduled performances on 6, 9, 11, 13, 15 and 17 June.
Sonya adds on her website: Ms Yoncheva is very sorry to miss these performances and to disappoint the London audiences but is looking forward to returning to the ROH later in the run.
Yoncheva’s baby son was born last October.