Brock Marvin got an unexpected treat Saturday while at the Bob Hope Chrysler Classic in La Quinta Saturday.

The 15-year-old from Elizabethtown, N.Y., who nine months ago had a heart attack and suffers from an enlarged heart, got a one-on-one lesson from the king of golf — Arnold Palmer.

“He was a real down-to-earth guy. I respect him a lot more after this,” Brock said of meeting the golf giant.

Palmer, 79, is a five-time tournament winner and this year's host.

Brock attended the five-day event with his brother and father courtesy of the Make-A-Wish Foundation.

He was given the chance of a lifetime to meet Palmer thanks to tournament officials.

Brock suffers from familial dilated cardiomyopathy, a genetic disorder that has enlarged his heart by about 4 times the size of a regular heart.

He said his wish was to attend the Bob Hope Chrysler Classic.

Brock said Saturday he was told there was a surprise for him, but had no idea he was going to get to meet Palmer until he was standing in front of him.

“I was a little nervous,” he said after he realized what was happening.

It was out on the driving range standing side by side with Brock where Palmer bestowed his knowledge on the young golfer.

“I'm gonna do to you what my dad did to me,” Palmer said as he showed Brock how to grip a club.

“If you keep that (grip) you might be (the next) Tiger Woods,” Palmer joked.

The new grip felt weird, Brock said.

Nonetheless, with a gallery behind him and the king of golf watching intently, Brock gave it a swing and sent the ball flying though the air a couple hundred yards.

“That was perfect,” Palmer said.

It's been a long time since he's given a one-on-one golf lesson.

“This was a pretty special opportunity,” Palmer said.

Brock has only been golfing seriously since the summer.

After his heart attack last April, Brock's doctor said the only sport that would not put a strain on his heart was golf.

That was a little tough for the star athlete who excelled at baseball and soccer.

But, he enjoys the quiet nature of golf.

“He's a miracle worker,” Brock said of Palmer.

“He's the king. He knows what he's talking about. He taught me how to do that,” Brock said, amazed at the success of his new swing. “ I have to listen to him.”

Walter Marvin, Brock's dad, is amazed at his son's recovery.

After the heart attack, Brock's heart stopped pumping, causing him to “flatline.”

“We lost him once, and they brought him back,” Walter Marvin said of the ordeal. “He came out of it unscathed. No brain damage.”

In October, Brock's doctors mentioned the possibility of a heart transplant, but they no longer believe they have to do that.

In a few months, his family is heading to the Dominican Republic, where he will undergo a stem cell procedure.

He said his reproduced stem cells will be injected into his heart, causing the damaged tissue to regrow.

“He has been through so much. I'm so glad to see him get his wish,” said Michele Weide, a wish coordinator who attended the trip as an escort.