Offensive Tackle: Protecting the Edges

By 4Football Staff · September 27, 2026 · 10 min read

Offensive tackles guard the ends of the line against the fastest pass rushers on the field. Learn the stance, the pass set, the run-blocking jobs, and why left and right tackle differ.

Almost nobody learns an offensive tackle's name until something goes wrong. When the quarterback is sacked from the side, the camera finds the tackle who got beaten. When a run goes for twenty yards, the camera follows the back. The tackle who sealed the edge for that run rarely appears on the replay, and the one who kept a pass rusher away for four seconds does not appear in the box score at all.

That is the nature of the job. The tackle stands at the end of the offensive line, with open space outside him and a fast, athletic defender lined up across from him. He has less help than any other lineman, and he is asked to be perfect on a play where one slip can end in a sack. This guide explains how the position works.

Where the tackle lines up

The offensive line has five players: a center in the middle, a guard on each side of him, and a tackle on the outside of each guard. The tackles are the edges of the line. On most plays a tight end lines up next to one of them, though the other side may be open or have a wide receiver outside.

Offensive linemen generally wear numbers from 50 to 79 in the NFL, and the rules treat players in that range as ineligible to catch forward passes unless they report to the officials as eligible. Offenses sometimes use a tackle-eligible play, in which an extra tackle reports as eligible and lines up as a tight end. It is a rare surprise play, and the exact procedure and numbering rules are set by the rulebook for each level.

The two sides are named for where they stand: the left tackle and the right tackle. Though each does the same basic job, their assignments differ in ways explained below.

A right-handed quarterback sets up to throw with his body turned slightly toward his right side, which leaves his back toward his left. A rusher who comes from the left can arrive without the quarterback seeing him, which is why it is called the blind side. The left tackle protects it, and for a long time teams treated him as the most important lineman and paid him accordingly.

If the quarterback is left-handed, the geometry flips and the right tackle protects the blind side. The idea matters less than it used to, because modern defenses often move their best pass rusher around the formation, so an offense cannot assume the biggest threat is always on one side. Some offenses even swap the two tackles to match a pass rusher. A tackle who can play either side is valuable, and a backup who can handle both is often called a swing tackle.

The right tackle's role has its own character. Right tackles often face the defense's other edge rusher and are frequently asked to be strong run blockers, since many run plays are designed to go to the right side. Because roles differ by scheme and team, treat these as tendencies, not rules.

The pass set

On a passing play, the tackle's goal is to keep the rusher away from the quarterback long enough for the ball to come out. The movement is called the pass set, and it has several steps.

The stance. The tackle starts in a balanced position, either with a hand on the ground (a three-point stance) or standing slightly (a two-point stance). His weight, feet and shoulders are positioned to move backward and sideways quickly.
The kick-slide. At the snap, he takes a short backward step with the foot closest to the rusher, then slides, keeping his shoulders square to the line. The idea is to stay between the rusher and the quarterback without crossing his feet.
The depth. The set takes him back a few yards, which keeps the rusher from beating him with a straight-line burst around the corner. A set that is too deep leaves the inside open, and a set that is too shallow lets the rusher get a run at him.
The punch. When the rusher commits, the tackle strikes with both hands inside the rusher's chest plate, aiming to stop his momentum and gain control.
The anchor and mirror. Once the hands are on, he sinks his hips to resist a bull rush, which is a power move, and shuffles his feet to mirror a rusher who tries to go around him.

Footwork is the foundation. A tackle who is late with his first step can lose the rep before his hands are involved. For the techniques common to all linemen, see our guide to blocking fundamentals.

What the rusher does

Edge rushers have a toolbox of moves aimed at beating the tackle: a speed rush around the outside, a bull rush straight through him, a swim or rip to get a shoulder past his hands, a spin to turn away from contact, and counter moves that combine them. We explain these in pass rush moves. A skilled rusher sets up his move with a fake, so the tackle has to stay patient and avoid lunging.

A rep, step by step

Take a hypothetical snap. The defensive end lines up wide of the tackle and uses a speed rush. The tackle's kick-slide gets him to a planned depth, with his inside shoulder pointing at the passer and his outside foot ready to push off. The end bursts up the arc, and the tackle shuffles to stay between him and the quarterback, keeping his weight on the balls of his feet and his hands tight to his body until the moment of contact. As the end dips his shoulder to turn the corner, the tackle punches, steering the rusher's momentum past the top of the quarterback's drop. The quarterback steps up in the pocket and throws. The tackle never moved the rusher backward, and the play still counted as a perfect rep, because the goal was to delay, not to dominate.

If the same end had faked outside and cut inside, a tackle who lunged for the first move would have been beaten. That is why coaches drill patience as much as strength.

The danger of being beaten

A tackle who falls behind has few good options. He can try to push the rusher past the quarterback, which can still lead to a sack if the rusher curls back. He can grab, which draws a holding penalty. Or he can accept the pressure and hope the quarterback gets rid of the ball. This is why tackles rank as such high-stakes players: a single failure can end a drive.

The run game

In the run game, the tackle's job changes from retreating to attacking. He fires out of his stance and tries to move a defender off the line or seal him away from the play. The techniques include:

Drive block. He aligns against the defender in front of him and pushes him backward.
Reach block. When the defender is lined up wider, the tackle steps to the outside to get his body between the defender and the ball carrier.
Down block. He blocks the defender on his inside, usually while another blocker handles the man outside.
Combination block. He works with the guard or tight end to drive one defender, and then one of the two climbs to block a linebacker.
Zone steps. On zone runs, tackles move laterally with their neighbors, taking whoever shows up in their area.
Pull. On some plays, a tackle can leave his position and run across the formation to lead the ball carrier, though that is more commonly a guard's job.

Run blocking is a different skill from pass protection. A tackle who can drive defenders off the ball shows up as a big, powerful player. A tackle who is superb at pass sets but can't open holes might be a better fit in a pass-first attack. Many teams look for both abilities in the same player and accept a gap if they have to. The terms gap scheme and zone scheme describe two broad styles of run blocking, and we compare them in a separate guide on the run game.

Working with neighbors

A tackle's success depends on communication with the players beside him. Several scenarios come up repeatedly.

Stunts and twists. Two defenders swap paths so that one loops around the other. The guard and tackle must pass the rusher between them without leaving a gap. If they miss the exchange, someone runs free. Our guide to the offensive guard covers the interior half of that handoff.
Blitz recognition. The center usually makes the calls that identify who is responsible for which rusher, and the tackle adjusts. The scheme dictates whether the tackle blocks the end, a blitzing linebacker or a defensive back.
Help from a tight end or back. The tackle may get help from a tight end or running back, with a chip block before the receiver releases. The more help a tackle receives, the less he's left alone.
Slide protection. In a slide scheme, the line shifts in one direction, and the back is responsible for the rusher on the other side. Our guide to protection schemes explains how these calls fit together.

Penalties that haunt the position

Tackles draw flags because their task is physical and hard. The common ones:

Penalty	What it means for a tackle
False start	Moving before the snap, which a tackle may do when anticipating the count.
Holding	Grabbing or restricting the rusher with the hands outside his frame, often when he is beaten.
Illegal use of hands	Using the hands in a way the rulebook forbids, such as striking a defender in a prohibited area.
Ineligible receiver downfield	Going too far past the line on a pass play; the allowed distance varies by level.

Because the rusher is moving quickly, a tackle can easily slip into holding. The best tackles draw few of these penalties because their technique puts their hands in the right place. A look at the injuries page is also useful, since the loss of a starting tackle can change a team's protection plans abruptly and the replacement often has to face the same rusher.

What teams look for

Scouts weigh a handful of traits when they evaluate tackles.

Length. Long arms let a tackle reach a rusher before the rusher reaches him. Evaluators measure arm length precisely because it affects how far he can keep defenders away from his body.
Footwork and balance. A tackle moves backward and sideways, often at speed, and stays under control.
Strength and anchor. The power to absorb a bull rush without giving up ground.
Hand use. A fast, accurate punch and the discipline to keep the hands inside.
Football intelligence. Recognizing blitzes and stunts, and adjusting.
Durability. Tackles are expected to play every snap, and their health matters.
Mental toughness. A tackle will lose some snaps, and the next one needs to be a clean rep.

Because the position protects the quarterback, teams often spend significant draft resources on tackles. You can see how the position is treated in the draft section, though what teams pay and which round they choose differs from year to year.

How the position differs by level

At youth and flag levels, linemen are often chosen for size, and the main job is simply to block the player in front of them. In high school, tackles in run-heavy offenses spend most of the game attacking forward, while those in spread passing offenses learn the pass set. Offenses also differ in whether tackles start in a three-point or two-point stance. In college, the schemes range widely, from option and power-running teams to wide-open passing attacks, so tackles need to adapt. In the NFL, the rushers are faster and the schemes more complicated, and tackles often face the best pass rushers in the world, so mistakes are punished. To find a team near you, use the high school directory; the Play section covers recreational football.

Reading a tackle's performance

There is no official box-score line for a tackle's work. Fans often rely on the sack total for the team, which is a blunt measure because sacks depend on the quarterback's holding the ball, the receivers' routes and the play call. Outside services chart pressures and blown blocks, but definitions vary among providers, so compare numbers only within the same source. A more practical approach is to watch a few plays: where do his feet go, do his hands strike first, and does he stay between the rusher and the quarterback? Check the team pages for which player starts at each tackle spot.

Common misconceptions

"The left tackle always protects the quarterback's blind side." That is true for right-handed quarterbacks. For a left-handed passer the situation reverses, and many modern defenses move their best rusher around.

"A sack is always the tackle's fault." A sack can come from the quarterback, the receivers, a guard missing a stunt, or a blitz that outnumbers the blockers.

"Bigger always wins." Size helps, but technique and footwork often beat strength alone.

"Tackles never touch the ball." Occasionally a tackle-eligible play makes one a receiver, but that is a rare change of status, and the rules for it differ by level.

The short version

Tackles line up at the ends of the offensive line, so they face edge rushers with less help than interior linemen.
The blind side belongs to the tackle opposite a right-handed quarterback's throwing arm, which is normally the left tackle.
The pass set is built on stance, kick-slide, depth, punch and anchor.
Run blocking uses drive, reach, down and combination blocks, plus zone steps.
Communication with the guard, center, tight end and back matters as much as strength.
Penalties such as false start and holding often come from being beaten, so technique is what keeps a tackle on the field.

Install