Sergei Filin was attacked as he left his home in Moscow on Friday night . There was `` fierce rivalry '' for the Bolshoi position at the time , according to RIA Novosti . The unidentified assailant threw concentrated acid in his face , causing severe burns . Filin had faced intimidation , including threatening phone calls , state media say .
Sergei Filin was attacked as he left his home in Moscow on Friday night . The unidentified assailant threw concentrated acid in his face , causing severe burns . Filin had faced intimidation , including threatening phone calls , state media say .