"King" Arthur Villanueva (in black trunks) scores a crushing KO via a step and pivot. The video is slow getting started, but study how in the initial exchanges Arthur slips the Jimenez’s lead left jab, and then hugs his opponent’s side as he pivots counterclockwise. This moves him toward his opponent’s back. The danger of this move is not just the new angle it creates where Arthur stands, but the new angle that is created when his opponent tries to regain position.
In the knockout sequence, starting at 30 seconds, Arthur strikes with a straight right, then throws a lead left hook, which Jimenez ducks. The two boxers are like fighter pilots in a midair dogfight, each circling the other–the winner is the one with the tightest circle. As Arthur circles, he continually maintains his left-forward stance. Study his feet as he circles: the left foot is always forward.
Jimenez, though, as he ducks and circles steps forward with his right
foot, a fatal mistake. In his turn, stepping forward with the right foot opens up his centerline. Once he steps forward with his right foot and pivots to swing at Arthur, he is knocked out.
It is possible for Jimenez in the same sequence to step forward with the right foot, but the key is to stay low and whip the left foot around at a 90 degree angle so you emerge in a right-forward stance oriented toward the opponent. Jimenez might even have survived if he had stepped with the right and thrown the more economical left hook, but he stepped with the right (which opened him up) turned into his opponent, and then tried to throw the more distant right hand. Jimenez’s pivot and torque to throw the right hand merely funnels all that force into the path of Arthur’s punch.
The crucial lesson is that your evasive maneuver isn’t enough; you must also recover safely and reorient yourself.