Andreeva's program under Conchita Martinez is built around four pillars — each one producing a different quality on court, all of them stacking on the same frame.

Pillar 01 — Preseason Strength

The Foundation Block.

"During off-season we rest a little bit. Then we go to preseason, and the loads are huge. We do a lot of strength sessions with a lot of weights to gain muscle."

The off-season is short. The work inside it isn't. This is the block where the body gets built for everything that follows — heavy barbell work, compound lifts, the unglamorous frame-building that nobody sees on broadcast. Because the off-season is where the next season gets won.

Tools: Barbells · Weight Plates · Heavy Dumbbells

Pillar 02 — Power & Reactivity

Jumps. Throws. Serve Speed.

"We try to do a lot of powerful strength sessions, using weights, using throws, using jumps. I have more power to jump higher and to be more reactive on the serve."

Strength that moves. This is where the foundation becomes a weapon — explosive work that teaches the nervous system to fire fast. It's why her serve has more pop than it did a year ago. It's why she gets to balls she used to watch go by.

Tools: Kettlebells · Medicine Balls · Lighter Dumbbells

Pillar 03 — The Balance

Strong. And Still Light.

"You have to be strong, but at the same time you have to be light as well. It's really tricky to balance."

This is the line most strength stories skip. For a tennis player, muscle that costs you movement is muscle you don't want. Andreeva's program is a constant negotiation — heavy enough to generate force, light enough to still cover every inch of the court.

It's why she doesn't train like a powerlifter. It's why she doesn't train like a sprinter. It's why she trains like herself.

Tools: The full Nike Strength system — heavy tools for the foundation, lighter tools for the reactivity.

Pillar 04 — Trust

Confidence Built in the Gym.

"Training in the gym gives me more confidence on the court because I feel more powerful. You cannot have the same feeling when you do any different kind of session outside of the court."

The fourth pillar isn't physical. It's what the first three produce. When you've done the work, you know you've done the work — and that changes how you play the biggest points. Andreeva describes it as trusting her body. Every rep in the gym is a deposit toward that trust.

The WTA calendar doesn't leave space for a traditional training block — so Andreeva and her team work the strength sessions into the seams. Some days are for tennis. Some days are for the gym. Some weeks, when there's a window, they push to the edge.

"We're also doing a good job with scheduling all the trainings and practice sessions."

The program doesn't look the same in May as it does in January. But it's always there.

Andreeva's foundation is still being poured in real time. Nike Strength is the equipment she trusts to build it.

Every piece is engineered to the exact specifications championship athletes demand — the barbell she loads in preseason, the kettlebells that train her rotation, the medicine balls that sharpen her serve. The same tools. The same standard. Available to anyone chasing something.