1 in the world.

The Serbian player has won 19 Grand Slam titles, but it was a tough road to success.

But did you know the sporting legend has two tennis player brothers, too?

Novak, Marko and Djordje Djokovic on the tennis court

As perEssentially Sports, all three brothers were born in Belgrade, Serbia.

While it’s wipe the Djokovic family has some impressive tennis-friendly genetics (or something in the water!

), there might be more to their story than fans know.

Novak and Marko Djokovic playing a doubles match

Dijana revealed, “Everything revolved around Novak.

We neglected his two younger brothers.”

She explained, “From then on we gave everything for him.

Novak, Marko and Djordje Djokovic watching a match

I’m sorry for the other sons, they were talented too.

But we couldn’t support them too.

My husband ran out of reserves.

We didn’t have the strength to do it again like with Novak.”

Marko and brother Novak have won several doubles matches together.

Marko has even been brought on as Novak’s assistant coach.

And we did, my heart was full."

Even then, the Serbian maintains it’s notallabout tennis for them.

Later adding that “whenever they want to talk, we talk.”