The N.B.A. suspended Memphis Grizzlies guard Ja Morant for eight games without pay for conduct detrimental to the league after he appeared in an Instagram live video on March 4 “holding a firearm in an intoxicated state” while visiting a nightclub near Denver, according to a league statement.

Morant has not played since March 3, and the five games he has missed will count toward the suspension. He will be eligible to play again in the Grizzlies’ game Monday against the Dallas Mavericks.

“Ja’s conduct was irresponsible, reckless and potentially very dangerous,” N.B.A. Commissioner Adam Silver said in a statement. “It also has serious consequences given his enormous following and influence, particularly among young fans who look up to him. He has expressed sincere contrition and remorse for his behavior.”

This is a developing story. Check back for updates.