Arkady Rotenberg Arkady Rotenberg Arkady Romanovich Rotenberg (, born December 15, 1951 in Leningrad) is a Russian businessman and tycoon. With his brother Boris Rotenberg, he is co-owner of the Stroygazmontazh (SGM) group, the largest construction company for gas pipelines and electrical power supply lines in Russia. He was listed by "Forbes" in 621st place among the world's wealthiest persons in 2014. He is considered a close confidant of president Vladimir Putin. As of November 2017, "Forbes" estimates his fortune at $2.5 billion. He is subject to personal sanctions by the United States government related to the events during the Ukrainian crisis.
Sparring Former Ultimate Fighting Championship fighter Jamie Varner came to an early retirement because he had a lot of head trauma in full contact sparring. UFC former welterweight champions Robbie Lawler and Johny Hendricks don't do full contact sparring. Sparring has different names and different forms in various schools. Some schools prefer not to call it sparring, as they feel it differs in kind from what is normally called sparring. Sparring Sparring is a form of training common to many combat sports. Although the precise form varies, it is essentially relatively 'free-form' fighting, with enough rules, customs, or agreements to make