I found two boxer records in boxrec.com
1. Yuri Nicolaev - ID# 021469 (1-3)
2. Yuri Nikolajev - ID# 092337 (2-0)
I am a native Russian speaker, so to me these two people sound one and the same person. Both are Heavyweights, both fought in Russia, at the same time (1993 - 2000). They even both have fought in St. Petersburg.
Can anyone confirm or deny that these two records may belong to the same person?
Thanks!