Rules Analysis
Traveling: The thrower must establish a pivot at the appropriate spot on the field and keep all or part of the pivot in contact with that spot until the throw is released. Failure to do so is a travel and results in a stoppage of play and a check .
Results in a stoppage of play and a check only if the travel is called.
A player receives a pass while running or jumping, and releases a pass after the third ground contact and before establishing a pivot (XV.C).
A player receives a pass while running or jumping, and releases a pass after the third additional ground contact and before establishing a pivot (16.C).