A nice write-up on the three wide receiver positions from Football

The slot receiver is typically lined up behind the line of scrimmage and inside another receiver Jamison Crowder plays this role for the Jets

Slot Receiver: The “slot” is the space in between the split end and the tackle or the flanker and the tight end This is where a “slot receiver”

football glory slot A wide receiver who lines up between the outermost wide receiver and the offensive line is said to be in the slot and is called the slot receiver A

football rules slot Unlike most outside wide receivers, the Slot receiver may serve as a typical pass catcher, a blocker on run plays, and even a running back from time to time