The National Basketball Association (NBA) has been hit with a lawsuit over its marketing agreement with failed cryptocurrency exchange Voyager Digital Holding, which investors claim led to $4.2bn in losses. The lawsuit, filed in Miami, claims that the NBA and its lawyers at McCarter English were "grossly negligent" in agreeing to a marketing agreement between Voyager and Mark Cuban, the former owner of the NBA's Dallas Mavericks, whom the investors had previously sued for promoting the exchange as "a major player" after it collapsed in 2022. was an "unregulated and unsustainable fraud" after it collapsed in 2022.