A dream of a lifetime is soon to come true for a small-town Minnesota girl.

Gretta Van Horn got her hands on some very difficult tickets, behind the bench seats to the Duke vs. UNC men's basketball game.

The game is certain to be a real battle, involving two long-time rivals.

But battling is something Gretta knows a lot about.

She is battling brain cancer for the third time in five years.

We have the story of our very own reporter Mattie Hjelseth's sister, Duke's super fan, and how this very special gift from Coach Krzyzewski himself came to be.

Gretta Van Horn fell in love with the Duke men's basketball team more than 15-years ago.

And is she ever a fan, Gretta never misses a game on TV.

Not only that, but the blue and white colors, a hallmark of the Blue Devils, is everywhere in her home.

Coffee cups, blankets, and of course, her precious duke jerseys.

Not only that, the blue and white have even found their way to her cane.

"I'm feel okay, I get tired but I did lose my ability to walk. The doctors think it was from the first round of radiation. But, I'm hoping I can just walk with my Duke cane and my foot braces by game time," says Gretta Van Horn.

Gretta's mom, Joni, reached out to Coach K, knowing her daughter is a huge fan of Duke.

That's when the men's basketball team gave her daughter, Gretta, the opportunity to sit behind the bench to one of their biggest games of the year.

"When we found out the third time her cancer came back, the first thing she told our mom is she's sorry that she's got to go through this again," says Bettsy Hjelseth, Gretta's middle sister.

So getting these Duke tickets gives Gretta something to look forward to.

It's the first good news her family has had in a very long time.

"It's honestly a dream come true. I can't believe I'm actually going. I'm going to tear up. It's amazing," says Gretta Van Horn.

But it hasn't been the first time Gretta has been in contact with Coach K.

He called her and sent her autographed pictures.

"When he's so busy and takes the time to reach out. Yeah, it makes me feel special. It makes me want to work hard and beat cancer," says Gretta.

Gretta and her husband Jake will be heading to North Carolina for the game in February.

She says she's most excited to see Coach K in person.

She's also hoping, just maybe, she'll get the chance to meet him and thank him for his support with her battle.

Just like she's supporting him and the Blue Devils in theirs.

This is a very personal story for our reporter Mattie Hjelseth, as Gretta is her sister.