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Denis Iveljic, BSc, CSCS

@diveljic_

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135 lbs ➡️ 177 lbs.

But the weight gain is only part of the story.
He didn’t just get bigger.

He got stronger, more explosive, and more productive on the field.

Then → Now
Bench: 145 x 1 → 185 x 5 Squat: 225 x 1 → 225 x 12 Infield Velo: 72 → 83 mph Exit Velo: 80 → 99 mph

That’s what we mean when we talk about long-term athlete development.

The goal was never just to add 40+ pounds to his frame.

The goal was to build a stronger, more powerful athlete, and make sure that new strength actually transferred to baseball.

@parkersloan55 deserves all the credit for the consistency and work it took to get here.

Our job was to give him the roadmap:
Strength. Power. Movement. Throwing. Hitting. Recovery.

Cover all the bases and let the results compound over time.

This is what happens when an athlete commits to the process and has a plan built around what they actually need. If you’re ready to find out what’s holding your development back and start building your own plan, DM us “DEVELOP” and we’ll get you started. taken in Baseball USA "The Yard" by @diveljic_

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a month ago

Take me out to Live ABs!!
#TheDenXFCS #HesADenGuy #LiveAbs taken in The Lions Den - HTX by @diveljic_

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3 months ago

▪️ judehuff6 X @thedenxfcs ▪️

#TheDenXFCS #FaithCommitmentStrength #HesADenGuy by @diveljic_

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a month ago

@tylerbeede - “hey make sure you’re filming, watch this bomb. ” easton_Brunson12 is THAT DUDE. Definitely A DEN GUY.😤

#TheDENXFCS #FaithCommitmentStrength #DenGuy by @diveljic_

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6 days ago

PRO OFF-SEASON TRAINING | THE DEN x FCS 📍

MLB. MiLB. Indy Ball. Mexico.
Wherever you played this season, we have a program for you.

Your off-season should reflect your goals, your schedule, and what you need to be ready for next season.

Train with us your way:
▪️ In Person
▪️ Remote
▪️ Hybrid

Build a stronger foundation. Sharpen your game. Prepare for your next opportunity.

DM us “PRO” to get started.🚨 by @diveljic_

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13 days ago

Huge congratulations to our guy Corben Alexander on his commitment to Rice University. 🥶

@claytoncrum47 - “This one is especially meaningful knowing Corben will be playing for one of my former college teammates JJ Altobelli. Pretty special to see things come full circle.”

Corben embodies everything The DenXFCS stands for. He is humble, hard working , and does things the right way. If you want to know what a DenXFCS Athlete looks like — Corben is the poster child.

Corben, You earned this and we are so proud of you brother!

The journey is just getting started. GOD IS GOOD!

#TheDenXFCS #FaithCommitmentStrength #DenGuy by @diveljic_

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15 days ago

3 players who probably should shut down this off-season or give their arm a break 🚨 ft. @ninephysicaltherapy

Not every offseason needs more throwing on top of the workload you’ve had all year.

If you’re coming off a high workload, sometimes the best thing you can do for development is shut it down and recover.

Build the body. Restore the arm. Then ramp back up with purpose.

@pitchsafe.co by @diveljic_

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18 days ago

Come out for some fellowship and grow your faith!

Can’t make it? Join our Instagram live from home.
Not a member? Doesn’t matter.

Our facility and business is built on faith first and we open the doors for anyone to come out or tune in. 🙏 by @diveljic_

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18 days ago

Episode 1: The Assessment 📝

Listen in as @tylerbeede, CEO of The Den x FCS, discusses our assessment process.

This is built to find deficiencies - This is built to make you BETTER.

Spots are open.
DM us now to get started. by @diveljic_

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20 days ago

73 → 81 MPH in 6 months.

The velo gain is the headline, but the work behind it is what matters.

Our focus was simple:
Clean up the mechanics.
Get stronger.
Get more powerful.

Teach him to move faster and throw with more intent.
Over time, those pieces started to come together—and the radar gun followed.

An 8 MPH jump doesn’t happen from one drill or one cue. It comes from addressing the athlete as a whole and consistently attacking the areas that are holding them back.

Better movement. More strength. More power. More velo.

If you’re trying to figure out what’s holding your velocity back, come train with us.
In-person and remote training available.

DM “VELO” to get started. taken in Baseball USA by @diveljic_

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a month ago

Just a touch-and-feel bullpen, but there’s a lot to like here with @easton_brunson12

For a guy who doesn’t necessarily have to be a pitcher, he looks pretty polished on the mound.
Good mover. Good athlete. Easy arm action. Can really spin it.

And honestly, that shouldn’t be much of a surprise.
Good athletes usually figure things out.
Texas A&M is getting a really talented baseball player, and if he ever wanted to make pitching a bigger part of what he does, there’s definitely something there.

Athleticism translates.

And this is exactly why we like taking a deeper look at how athletes move.

Right now, we’re offering our 60-point mechanical breakdown to current Den athletes and incoming athletes who want to understand what may actually be holding them back.

We’ll break down how you move, where you’re leaking energy, what positions you may be struggling to get into, and what needs to improve moving forward.

Stop guessing at what you need to fix. Find out.

DM us “BREAKDOWN” if you want yours. taken in The Lions Den - HTX by @diveljic_

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a month ago

“🇭 🇪 🇸 🇦 🇩 🇪 🇳 🇬 🇺 🇾”

#TheDENXFCS #FaithCommitmentStrength #DenGuy by @diveljic_

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21 days ago