Kobe Bryant was drafted by the Los Angeles Lakers with the 13th pick in the 1996 NBA draft. AP Now that Kobe Bryant is retired, he has gone all-in on the investment and business world, something he prepared for by leaning on the billionaire investor Chris Sacca.

But even though Bryant is done playing basketball, he's still driven by some of the slights that happened to him during his NBA career.

Sacca was a guest on "The Bill Simmons Podcast" and told an incredible story about how Bryant reached out to him to learn more about the investing and startup world. Bryant had become so obsessed with learning about that world that Sacca's wife jokingly asked her husband if he was having an affair with Bryant.

After Bryant did his homework and was ready to start some projects, he teamed up with his mentor, Sacca. While Sacca didn't reveal what the collaboration was, he told a great story about how the business venture got its name.

"Kobe and I collaborated on something briefly that we were setting up for him," he said. "I was like, 'What should we call it, like Mamba or whatever?' And he came back said, 'No, no, no. I want to call it 13.' Do you know why? It's sports-related, and this was like two years. He said, 'Can you believe they drafted 12 other motherf----- before me?' He still wears that, man."

In that 1996 draft class, future Hall of Famer Allen Iverson was No. 1 overall. But after him, there were a lot of picks teams probably kicked themselves about a few years later.