In newly revealed court documents, the NFL Players Association (NFLPA) alleges that DraftKings (NASDAQ: DKNG) owes it around $65 million following the closure of the sportsbook’s nonfungible tokens (NFTs) marketplace. When the NFLPA’s lawsuit against DraftKings surfaced last week, the related documents were sealed, but there was speculation that DraftKings could owe the union $32.39…