Yes, Fyedka does not sing anything at all. I suppose he will be doing some choral singing, or as magruder said, be understudying Motel, who is a tenor. Who knows. Or, it could be that they are making him do the Russian solo in "To Life". However, if you see that as a requirement in the audition notice, just make sure that you meet all the requirements before you go. It doesn't make sense to worry about what they might be thinking. Because you can never know that. Just be prepared, and do your best.
Cheers,
The Balladeer
"Someone tell the story...Someone sing the song...."