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Overview & When to Use
While the high guard protects against hooks and straight shots, it leaves a gap underneath — the cross block seals this vulnerability by creating a shelf of bone and muscle directly below the chin. This is the primary and most reliable close-range defense against uppercuts, essential for any fighter who engages in inside fighting exchanges.
When to use
Use when you anticipate an uppercut or when fighting at close range where uppercuts are the primary threat. The cross block covers the chin from below where the standard high guard leaves its most dangerous gap. Critical for inside fighting defense, especially against shorter opponents who favor the uppercut as their primary weapon at close quarters.
Common Mistakes
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- Leaving a gap between the crossed forearms that allows the uppercut to split through and reach the chin — the forearms must be pressed tightly together with no daylight between them.
- Holding the cross block for too long as a static defense — it only protects against uppercuts and leaves the sides of the head completely exposed to hooks, so it must be transitional.
- Using the cross block against hooks and straight punches — the horizontal forearm shield does not cover the sides of the head or the face, making it the wrong tool for horizontal or straight-line attacks.
- Crossing the forearms too high or too low — too high leaves the body open and fails to catch rising uppercuts, too low blocks vision and still exposes the chin.
Pro Tips
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- The cross block is the only reliable defense against uppercuts at close range where slipping and pulling back are not viable options — train it until the arm crossing motion is automatic on any upward stimulus.
- Transition immediately from the cross block into either a tight hook or a clinch — the separation of the forearms naturally opens into hooking position with both arms already loaded.
- Practice the block-to-counter transition as one fluid motion: cross-block absorb, separate, hook — until the entire sequence takes less than half a second and feels like a single action.
- In southpaw vs orthodox matchups, the cross block is especially critical because the lead uppercut from the opposite stance arrives from an unfamiliar angle that is difficult to read.
Conditioning Drills
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- Partner Uppercut Block Drill: Partner throws controlled uppercuts at progressively increasing power while you cross block and counter with a hook — 4 sets of 20 reps with technique focus.
- Isometric Forearm Press: Press crossed forearms together as hard as possible for 30 seconds, rest 15 seconds, repeat for 4 sets to build the isometric bracing strength for absorbing uppercut impact.
- Inside Fighting Sparring Rounds: Designate 3 sparring rounds exclusively for inside fighting where both fighters work from clinch range — forces you to use the cross block under realistic pressure.
Q1 of 3
Which muscle group is primarily engaged when performing the Forearm Block (Cross Block)?