Martin Gonzalez shows some different tactics to street altercations that are no common in sport fighting. Martin Gonzalez is the founder of Blade Hunters, a group dedicated to practical knife defense training. While knife defense can be fun and fascinating to practice—especially with complex drills—it’s important to remember the harsh reality: in a real knife encounter, your main goal is survival and minimizing damage. Martin, also known as Sifu Gonzalez, is the owner and head instructor of Univ