Paul Pierce Sued Over Alleged $180,000 Poker Debt

Paul Pierce is being sued yet again ... this time a man is alleging the NBA legend borrowed a bunch of cash to play in poker games, but lost most of it all and never paid it back.

In the new lawsuit, obtained by TMZ Sports, Stephen Carmona says he was hosting a poker game at his home on Jan. 27, when Pierce showed up and asked Carmona to lend him some money so he could play.

Carmona claims he gave Pierce $150,000, and alleges the former Boston Celtics great -- who reportedly made over $195 million in his playing career -- promised to pay him back within seven days.

In the suit, Carmona says Pierce went on to lose $140K in the game and only returned $10,000 to him.

A week later, Carmona says he hosted another poker game at his home, and Pierce showed up again and requested another loan to play, despite not paying off the initial debt.

Carmona claims he handed over another $40,000 to the ex-NBA hooper, with the promise that he'd pay that off in addition to the $140,000 that he owed Carmona from the previous week.

Carmona says in the suit Pierce went on to lose the $40,000 that night ... and never paid it or the prior loan back.

Carmona says he's now out $180,000 -- and "despite multiple requests for repayment," Carmona says Pierce won't pay off the debt.

In the suit, Carmona is asking for $180,000 plus interest.

Pierce has yet to publicly comment on the allegations.

This is far from the first time the ex-NBA hooper has faced a civil lawsuit -- following the 2018 Conor McGregor vs. Khabib Nurmagomedov fight, he was sued for allegedly calling a security guard "racist."