Memphis Grizzlies star, Ja Morant, is being sued after he was accused of punching a 17-year-old during a pickup basketball game

Information reaching Kossyderrickent has it that Memphis Grizzlies star Ja Morant is being sued after he was accused of punching a 17-year-old during a pickup basketball game. 

Ja Morant has been sued, TMZ Sports has learned ... after he was allegedly involved in the attack of a minor during a basketball game in July at his Tennessee home.

The suit was filed in Shelby County in September. Court records show the case has since been sealed -- but we've learned it all stems from a July 26 incident at the NBA superstar's residence in Eads, Tenn.

According to police documents, a 17-year-old -- who filed the lawsuit on Sept. 9 -- told cops he was playing in a pickup basketball game with Morant at the house ... when the two got into a verbal altercation.

The plaintiff, according to the docs, said the argument became heated, and he threw a basketball at Morant -- "accidentally" hitting him in the face. The teenager said the Grizzlies point guard then approached him, put his chin on his shoulder, and asked a bystander "Should I do it to him?" The teen says Morant then struck him "with a closed fist, knocking him to the ground."

In the docs, cops say Morant told them he did strike the teenager, but insisted he was acting in self-defense. Morant said the plaintiff threw the ball at him "intentionally" during the argument, and then "began to approach him as if he wanted to fight."

Police say Morant also told them "his brother" was involved in the altercation as well -- but the basketball player did not name the man.

Both parties, according to the docs, said the fight was broken up by spectators shortly after it began. Morant told officers the teenager "made verbal threats stating he'd 'light his house up'" as he was being escorted off the property. Morant "advised he and his family were put in fear by the statement."

Officers say the plaintiff had a 'large knot' on his head.

Morant is said to have admitted striking the 17-year-old, but told police he did so in self defense. According to the former Murray State star, the plaintiff also 'made verbal threats' and said he was going to 'light [Morant's] house up.'

Morant said 'he and his family were put in fear by the statement.'

The police did investigate the plaintiff's claims for several weeks before submitting the case to the district attorney's office in October. However, police say the DA declined to proceed with charges.

It's not clear at the moment what the plaintiff is seeking in the lawsuit. Both Morant and his friend, Davonte Pack, are listed as defendants, according to TMZ.

The NBA's tenth-leading scorer, Morant is averaging 27.2 points a game for the Grizzlies, who sit in second place in the Western Conference at 23-13.