Traveling: The thrower must establish and continually maintain a pivot at the appropriate spot on the field until the throw is released. Failure to do so is a travel and is resolved according to 17.K.3, below.
In addition, each of the following is a travel:
Resolved according to 17.K.3 only if the travel is called, otherwise play continues uninterrupted.
The thrower fails to touch the disc to the ground when required (14.B).