Question: Name the Russian mixed martial artist who currently fights in the lightweight division of the UFC and is a training partner of Natalia Vitalyevna Vorobieva, a Russian wrestler who competed in the 2012 Summer Olympics?

Related documents: [0]  [DOC] Islam Ramazanovich Makhachev (Russian: Ислам Рамазанович Махачев ; born October 27, 1991 in Dagestan) is a Russian mixed martial artist, judoka and sambist of Lak origin. He is a Combat Sambo World Champion, and currently fights in the lightweight division of the Ultimate Fighting Championship. [END] 
[1]  [DOC] Natalia Vitalyevna Vorobieva (Russian: Наталья Витальевна Воробьёва ; born 27 May 1991 in Tulun, Irkutsk oblast, Russian SFSR, Soviet Union) is a Russian wrestler, who competed at the 2012 Summer Olympics. Vorobieva reached the finals in the 72 kg category where she beat Stanka Zlateva of Bulgaria to win the gold medal. She is also the holder of a number of titles at the youth levels. In the 2015 Golden Grand Prix Ivan Yarygin final match, Vorobyeva defeated Ochirbatyn Nasanburmaa of Mongolia. Vorobyeva train with UFC and M-1 Global MMA fighters, such as Khabib Nurmagomedov, Islam Makhachev, Vyacheslav Vasilevsky, Abubakar Nurmagomedov, Mikhail Malyutin, Ali Bagov. [END]  
Answer: Islam Makhachev
Islam Makhachev