You use weapon thrusts, lunges, and parries to hedge in your adversary, preventing it from moving away from you.

Daily   ✦     Martial, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. Reflex

Hit: 3[W] + Strength modifier damage.

Effect: Until the end of the encounter, when you are adjacent to the target and it walks or runs, you can cancel that movement as an immediate interrupt.

Published in Player's Handbook, page(s) 147, Class Compendium.