### Calf Slicer The Calf Slicer, also known as the "Calf Crusher" or "Knee Slicer," is a compression lock that causes the calf muscle to be crushed against the shin bone. This submission is often performed from the *half guard* or *back control* but can be adapted from other positions for a surprise attack. ### Step-by-Step Instructions for Performing the Calf Slicer from Half Guard: #### **Position: Half Guard** --- 1. **Establish the Half Guard** - Start in the bottom half guard position, ensuring you have your opponent's leg trapped between your own. - Your outside leg should be in front of their knee, ready to lock down their leg. 2. **Isolate the Opponent's Leg** - Grapple your opponent's ankle with your wrists, one hand on top of the other, or clasp your hands together. - With a quick motion, slip your opposite leg over their trapped foot. This initial move lets your outer leg prepare for what comes next. 3. **Shift to a Backward Half Guard** - Begin shifting your body to a backward half guard position, aligning your outer hip with your opponent's trapped knee. - Your sliding inside leg will assist in maintaining control while also creating pressure. 4. **Position Your Legs** - Cross your legs together, locking your opponent's foot and calf tight against your shin bone. - Adjust your position so that their knee bends over your shin, effectively setting the crushing effect. 5. **Creating the Squeeze** - To start applying pressure, squeeze your legs tightly together while pulling back on your opponent’s shin and leaning back slightly. - Relentless pressure is key. As your hips move backward, it increases the force being applied on the opponent's calf muscle. 6. **Finish the Slice** - Exert force with your upper body to further leverage the embedded shin bone into the calf. - With continuous pressure to the point of discomfort, wait for your opponent's tap out. 7. **Transition** - If the opponent manages an escape or resist, maintain control and be ready to switch to a reversal or alternative submission. --- ### Key Points to Remember: - Stay aware of your balance and body positioning throughout the move to prevent counterattacks or transitions from the opponent. - This is a powerful submission that can cause serious injury if performed with excessive force or improper intent. Always practice control. ### Safety Note: - As with many leg locks and compression submissions, execute with caution and always in a controlled training environment. - Communicate with your training partners to ensure safety and avoid injury. ### Conclusion: The Calf Slicer is a potent and effective technique when executed correctly, providing an unexpected submission option. Always practice it under close supervision, maintaining respect and sportsmanship during sparring.