A slot is a connection that’s dedicated to one user on a server. Slots can range in number from one to four, depending on the server capacity. The more slots there are on a server, the higher the server’s performance will be.
Slot receivers, who line up between the wide receivers and the running back, play a key role on offenses that utilize multiple receiver/back combinations. They typically run routes that mirror those of the outside wide receivers to confuse defenders and are tasked with blocking for the running back on outside run plays. Physically, they’re smaller and quicker than traditional wide receivers, but they must be tough enough to block blitzes from linebackers and secondary players.
In addition to their route running, slot receivers also play a significant blocking role on running plays, helping the ball carrier gain more ground on sweeps and slants. They can also be used to block for the quarterback on some pass plays and pick up blitzes from linebackers.