Knee Strike

The clinch-range strike

The knee strike is a clinch-range offensive technique where the attacker drives a knee into the opponent's body, thigh, or (when the opponent isn't on a grounded position) the head. Knees from clinch are one of the highest-damage strikes in MMA — the impact area is small and the force concentration is high, producing rib fractures, liver shots, and head KOs.

The Thai plum (double collar tie) is the canonical knee-strike delivery position; knees from single collar tie and from under-overhook positions are also common.

Mechanics

From the Thai plum with a staggered stance:

• Loading: the rear leg pre-loads; the rear hip drops to load the upward drive.
• Hip pull: the hands pull the opponent's head down sharply (forward and toward the attacker) at the moment the knee initiates.
• Knee drive: the rear knee drives up in a straight line toward the opponent's body or head.
• Connection: the knee lands with the point of the kneecap, not the thigh.
• Recovery: the rear leg either returns to stance or steps forward for a follow-up strike.

The simultaneous hip-pull-and-knee-drive is what produces the impact. Without the hip pull, the knee lands on a moving target; without the knee drive, the hip pull pulls the opponent forward into a knee that doesn't have full extension.

Knee targets

• Body: rib cage, floating ribs, solar plexus. Cumulative damage and KO threat at championship pace.
• Thigh: inside or outside thigh. Cumulative damage that limits opposition mobility.
• Head: chin, jaw, forehead. Highest-reward target but requires extreme posture break — the opponent's head must be at knee level for a clean strike. The Anderson Silva finishes of Rich Franklin (twice) and the Wanderlei Silva PRIDE-era finishes are the canonical head-knee KOs.

Variations

• Straight knee: rear knee driving straight up. Most common.
• Diagonal knee: rear knee driving up at an angle, landing on the floating ribs or liver.
• Flying knee: a jumping knee that closes distance, landing on the head as the attacker is airborne. Jorge Masvidal's flying knee KO of Ben Askren at UFC 239 in 5 seconds is the fastest UFC KO.
• Switch knee: a stance switch immediately before the knee loads the new rear leg.
• Single collar tie knee: from a single-hand collar tie (rather than the double-collar Thai plum), with the off-side hand fighting for grips.

Common errors

• No hip pull: the knee strikes a moving target without the simultaneous head pull.
• Knee landing on thigh: connecting with the thigh instead of the kneecap produces no damage.
• Standing tall during the knee: rising before the knee initiates removes the loading mechanic.
• No setup: throwing knees from neutral range without the clinch grip exposes the attacker to counter offense.
• Head pull without sufficient grip: a loose collar tie can't break posture for a head-level knee.

Defense

• Frame: posting a forearm across the attacker's neck or chest to disrupt the head pull.
• Crash into clinch: stepping into chest-to-chest range neutralizes the knee's loading space.
• Underhook: getting an underhook to break the collar-tie grip.
• Cross-face: driving a forearm across the attacker's face to disrupt their head position.
• Distance management: stepping out of clinch range entirely.

Exemplified by

• Anderson Silva: the Rich Franklin Thai plum KO finishes at UFC 64 and UFC 77.
• Wanderlei Silva: PRIDE-era knee strikes from the Thai plum, including the Quinton Jackson KOs.
• Jose Aldo: featherweight clinch knees as a cumulative damage source.
• Jorge Masvidal: the flying knee KO of Ben Askren at UFC 239.
• Aljamain Sterling: knee strikes integrated with the funk-wrestling chain.

Drills

• Thai pad knee work: pad holder feeds Thai pads at body level; you fire knee strikes on cue.
• Heavy bag plum and knees: 3 × 3 min rounds of plum grip and knee strikes on a heavy bag or Thai dummy.
• Partner drilling: cooperative reps of plum entry, head pull, and knee strikes.
• Live clinch sparring with knees: 3 × 3 min rounds with light knee strikes from clinch positions.