This is an example of a travelling violation at the start of the dribble. A player who catches the ball while standing with both feet on the floor cannot lift their pivot foot before the ball is released for a dribble.

In this example, Orange 12 catches the ball with both feet on the floor, establishes his left foot as his pivot foot. He then lifts his pivot foot off the ground before starting his dribble. This is a travelling violation by Orange 12.