Slot receiver (Y or SL): A less-formal name given to receiversin addition to split ends and flankers. These receivers line up between the split end/flanker and the linemen. If aligned with a flanker, the slot receiver is usually on the line of scrimmage, and if with a split end, off the line of scrimmage. As with the flanker position, a featured receiver often takes a slot position with a split end to avoid jamming.