which competition did Ekaterina Vasilieva compete in pairs with the russian pair skater who teamed up with Yuko Kavaguti and win two-time European champions (2010, 2015), two-time World bronze medalists (2009, 2010), two-time ISU Grand Prix Final bronze medalists (11–12 and 15–16), and three-time Russian national champions (2008–2010) ?
Ekaterina Vasilieva (figure skater) Ekaterina Vasilieva (born 9 September 1986) is a Russian former pair skater. Early in her career, she was a single skater. In 2005, she began competing in pairs with Alexander Smirnov. They placed 6th at the 2006 World Junior Championships for Russia. In the 2007–2008 season, she competed with Daniel Wende for Germany. They are the 2008 German bronze medalists.
Sergei Slavnov Sergei Gennadyevich Slavnov (Russian: Серге́й Геннадьевич Славнов ; born 11 March 1982) is a Russian pair skater. He is best known for his partnership with Julia Obertas, with whom he competed from 2003 to 2007. Together, they are the 2005 European silver medalists. Previously, Slavnov competed with Julia Karbovskaya, with whom he is the 2002 World Junior silver medalist.