The motivation behind the purchase is the scale of the audience that the Super Bowl reaches, said FTX chief executive officer Sam Bankman-Fried. While the exchange has staked out space in sports broadly, football is the focus, he said. Tom Brady, who Bankman-Fried refers to as “the greatest quarterback of all time,” took an equity stake in the company earlier this year as part of a long-term partnership, and he also starred in an FTX television ad that showed Brady calling friends and acquaintances to ask if they were “in” on cryptocurrencies.