Elaine Wynn, who is married to casino owner Steve Wynn, was promised by Jason Kidd that he would give her his newest Olympic medal if the Americans won the gold.
"It's not a (gambling) marker or anything like that," Kidd told The Arizona Republic. "She's just a great friend and a really great person."
They met last year when Kidd and the USA team stayed at the Wynn while training in Las Vegas.
"Last summer, we stayed at the Wynn for (what seemed like) a lifetime, close to three weeks," Kidd said. "We met at a banquet, we got to talking, and she really understands the game."
"I told her I'd make a deal with her, that if we won the gold medal, I'd give it to her. She thought I was kidding. But I told her I had one already, and the way they treated us at the Wynn, it was the least I could do."