MOSCOW — In any boxing club, sweat is part of the ambience, but in Russia, the sweat factor usually scores a one-two punch to the nose right from the doorway, reminding all who enter of what it smells like to be a nastoyashi muzhik, a real Russian man. On the wall of a small neighborhood boxing club in northwest Moscow, there is a huge, grainy photo of Stanislav Stepashkin, the 1964 Olympic featherweight champion who was one of Russia's early claims to international boxing fame, and a real Russian man if there ever was one. Stepashkin agreed two years ago...