Level: Intermediate - Advanced

WHY THE CURL / FLAT PLAYER MATTERS

Controlling the Outside Throw

The curl/flat defender controls one of the most attacked spaces in football.

Offenses constantly stress this defender with:

• Hitch
• Speed out
• Flat routes
• Corner routes
• Sail concepts
• RB releases

The curl/flat player must be able to defend the run, expand in coverage, and understand route distribution all within seconds.

This position requires discipline, vision, and communication.

PRE-SNAP ALIGNMENT

The curl/flat player usually is usually aligned most commonly inside shade of the #2 eligible on the field

or sometimes less likely in an apex position between the tackle box and the slot receiver.

Typical alignment:

• Outside the box
• Inside of #2
• 4-5 yards depth

This alignment allows the defender to:

• Fit the run quickly and decisively
• Expand to the flat
• Deliver/Condense vertical threats

The curl/flat player must stay balanced between run support and coverage responsibility.

RUN RESPONSIBILITY

The curl/flat player is a force defender in many Cover 3 structures.

Against the run:

• Set the edge (outside of #2)
• Force the ball back inside
• Maintain outside leverage

Eyes must quickly confirm:

Run or pass.

If run declares, attack with leverage and control. Condense space between the ball carrier and the blocker.

If pass declares, transition immediately into coverage responsibility.

DROP LANDMARKS

Standard curl/flat landmarks are:

10–12 yards deep
Top edge of the numbers in width. (coaches preference). some coaches prefer bottom of numbers

This positioning protects the puts us in prime position to defend any passes low in the flat, or deeper to the top of the flat zone.

The goal is to create width and depth simultaneously.

It is important to note that you own up to 18 yards of space from the line of scrimmage.

This landmark protects you on both vertical threat in your zone as well as shallow.

EXECUTING THE DROP

When pass is confirmed:

We must execute our reroute.

We want to spend some time getting #2 as close to #1 as possible.

This helps our corner midpoint on routes that develop deeper down the field.

Strike the receiver as he closes distance on us, and then escort him to #1 with your eyes back with vision on the QB.

As you are rerouting make sure to gain depth to your landmark. 10-12 yards to the top of numbers.

When you reach your landmark, make an aggressive hip flip turn, back into the field of play. It is important to stop, DO NOT DRIFT. Drifting too deep or too wide will take you out of prime position for many plays.

• Keep your leverage on all routes expanding to the flat, as well as having vision on anything coming to your zone.

The curl/flat defender should not drift randomly.

The drop should be purposeful and controlled, allowing the defender to see both the quarterback and route distribution.

EYES AND VISION

The curl/flat player should maintain vision on:

Quarterback through #2.

This allows the defender to:

• Identify quick routes to the flat
• Recognize vertical threats
• React to quarterback shoulders

Eyes should never lock solely on the receiver.

Vision must stay connected to the quarterback.

ROUTE RESPONSIBILITY

The curl/flat player must recognize when a route enters their zone.

Common responsibilities include:

• Flat routes by #2 or RB
• Out/Hitch routes by #1
• Out/Corner routes entering the zone
• Wheel routes developing from the flat

When a route enters the zone and then continues up field, the defender must buy the route.

Buying the route means:

Carry the route in man coverage.

For example, think of a wheel; When the shoulders turn, and then turn again to move up field, you must buy this route.

Any second receiver through your zone you must also buy as a man.

FORMATION ADJUSTMENTS

Formations can stress the curl/flat player.

For example:

2x2 sets

• Standard curl/flat prinicples applies.

3x1 formations

• The curl/flat player may have an imminent threat of #3 crossing to the flat early. See everything.

1x3 FIB (formation in boundary)

The curl/flat player may be asked to hold backside or begin to work towards the strength of formation (coaches' choice)

Reduced splits

• Routes may expand outside quickly, less emphasis on reroute.

Understanding formation helps anticipate which route concepts are coming and how to play your technique efficiently.

COMMUNICATION TOOLS

Communication is critical.

Defenses can often communicate route concepts using calls such as:

China Call

This alerts the defense to a smash concept.

A corner route (#2) paired with a flat route (#1).

The call helps the defense understand the concept and adjust spacing.

Curl/flat players can attach to the China route and buy it as soon as they hear China.

In Call

Signals an inside breaking route. (usually over your head)

This helps defenders anticipate route combinations and protect the space behind them.

Communication allows the defense to play faster and avoid confusion.

Under

Communicates that there is a shallow crossing underneath in the no cover zone.

This call can help us pass off routes to the next zone nearest to us.

COMMON ERRORS

Many curl/flat players make these mistakes:

• Dropping too shallow
• Over-expanding to the flat
• Losing vision on the quarterback
• Chasing routes outside their responsibility / No Reroutes!
• Failing to communicate route concepts

The curl/flat player must stay disciplined within the structure.

KEY PRINCIPLES

The curl/flat defender must:

• Balance run and pass responsibility
• Maintain correct drop landmarks and reroute structure
• Keep vision on the quarterback
• Understand route distribution
• Communicate route concepts

When played correctly, the curl/flat defender removes many easy throws from the offense.

Players:
When dropping into curl/flat, are you protecting space or chasing receivers?

Coaches:
Do your curl/flat defenders understand their landmarks and vision keys?

Food for Thought:
If the curl/flat defender loses discipline, how many easy throws does the offense gain?