Former NBA player Spencer Haywood sold what would have been a lucrative stock.

In 1970, Haywood, who made history at the Olympics as the youngest American basketball player at 19, took his talents to the Seattle SuperSonics, after playing in the American Basketball Association (ABA) for the Denver Rockets, according to Legends of Basketball.

Haywood represented the team for five years, during which time he was offered the opportunity to wear a Nike shoe by Phil Knight, co-founder and then-CEO of the company, which began in 1964 as Blue Ribbon Sports alongside Bill Bowerman. Haywood agreed, he revealed on the “All the Smoke” podcast. Knight also offered Haywood stock in the company, although Haywood admitted the concept was foreign to him.

Basketball Network reports Haywood was Nike’s first-ever basketball shoe endorser.

“First of all, I was young, too. And I’m thinking, ‘Livestock?’ What are you talking about,” Haywood said on the podcast.

Nonetheless, Haywood accepted the stock but gave his friend the authority to serve as his power of attorney. His friend also hesitated about the shoe’s integrity, as the heel would pop off during gameplay. That friend decided to sell the stock, leading to Haywood’s six-figure payday.

“So I get the stock and my boy that I let do the negotiation, he was struggling, you know having bills taken care of. So he was like convincing me that the shoe is never going to work… So I said, ‘OK, man. I’ll give you the power of attorney. Let me just go play. I got to play. I got to focus on this game now because this is my chance,'” Haywood explained. “When I came back, he had sold that sh-t. He said, ‘Man, I got the cash right here — $100,000.’”

“All the Smoke” host Matt Barnes inquired how much that stock would have been worth today, and Haywood responded, “It was up around $2.7 billion.”