Complex sentence: Alexei Alexandrovich Rogonov (born 6 June 1988) is a Russian pair skater, partnered with Kristina Astakhova, he is the 2015 Winter Universiade silver medalist.
Split into simpler sentences: Alexei Alexandrovich Rogonov (born 6 June 1988) is a Russian pair skater. With partner Kristina Astakhova, he is the 2015 Winter Universiade silver medalist.