The most complete fighter : yuri boyka - department of, But he was not the only champion we had. we had our very own yuri boyka, a man hard to define. a man or rather to call him an animal more violent then me.Yuri boyka (character) - biography - imdb, Yuri boyka is a russian male sent to prison for 1st degree murder. during his time in prison he became the prison fighting champion as well as made a reputation for. Film combat syndicate: too much boyka?: my thoughts on, Too much boyka?: my thoughts on scott adkins and the undisputed franchise.