 Complete the following phrase:  Serhiy Potalov ; : Sergei Potalov is a Ukrainian former pair skater. He teamed up with Olena Bilousivska in mid-1994. In autumn 1995, they won silver at the Nebelhorn Trophy and bronze at Skate Israel. They placed in the top ten at the 1995 European Championships in Dortmund, the 1996 European Championships in Sofia, and the 