William Lee Bergstrom (1951  February 4, 1985) commonly known as The Suitcase Man or Phantom Gambler, was a gambler and high roller known for placing the largest bet in casino gambling history at the time amounting to $777,000 ($2.76 million present day amount) at the Horseshoe Casino, which he won.
For once, Sandi Graham (Drake's mother) might be able to cash out from her son's proclivity for sports betting; Drake received a payout of over $2 million. A multimillionaire celebrity partaking in some sports betting isn't unusual; many are even known to buy or invest in sports teams to build their wealth, after all.