Tiger Pounce
Your unarmed strikes are as precise as they are powerful, but they leave you open and you can pursue foes with blinding speed.
Prerequisite: Improved Unarmed Strike, Power Attack, Tiger Claws, Tiger Style, base attack bonus +9 or monk level 8th.
Benefit: While using the Tiger Style feat, you can apply the penalty from Power Attack to your AC instead of attack rolls. Additionally, once per round as a swift action, you can move up to half your speed closer to a target you hit with an unarmed strike or made a successful combat maneuver against on this turn or your last turn.
Source: Ultimate Combat, p. 122