If a player catches a throw-in pass while straddling the division line, what happens if they lift a foot from the backcourt?

When a player catches a throw-in pass while straddling the division line, they are considered to be in a unique position regarding their location on the court. If the player then lifts a foot from the backcourt while having the other foot on the division line, this action results in a backcourt violation.

According to the rules, once a player establishes possession in the frontcourt, they cannot return to the backcourt after lifting their front foot. Straddling the division line means they have not fully entered the frontcourt yet, but if they lift their back foot from the backcourt, they will have violated the rule that prohibits backcourt re-entry after the ball has crossed into the frontcourt. Thus, the violation is called to maintain the integrity of the game and ensure fair play, preventing the player from gaining an unfair advantage by returning to the backcourt after initiating play from the frontcourt.