However, if the receiver catches the ball and has possession of it, then loses control of it for any reason,and if an player from the other team catches it it is ruled a fumble. In the NFL, both feet must be in bounds and the player must have clear control of the ball for a number of seconds without taking pass interference into account. In other leagues, only one foot must be in bounds with clear possession carrying a lighter burden of proof. If a member of the opposing team gains possession of the ball before it hits the ground, it is ruled an interception.