Police confirmed Ja Morant will not be charged after appearing to flash a gun at a Denver nightclub while the Memphis Grizzlies revealed he will remain away for at least their next four games.

Morant had been under investigation by the Glendale Police Department (GPD) on whether he broke the law in last week's incident where he posted an Instagram Live video that seemed to show him brandishing a gun inside a nightclub.

In a statement the GPD said it "was not able to determine that probable cause existed for the filing of any charges".

The GPD said it did not receive any calls for assistance at the nightclub that evening, nor were disturbances reported.

"Although the video was concerning enough to prompt an investigation, there was not enough available evidence to charge anyone with a crime," the statement said.

It is not against the law to carry a gun in Colorado, but there are exceptions to the rule, one of which being you must not be in possession of one while under the influence of alcohol. Morant was not seen to be drinking during the footage.

Meanwhile, the Grizzlies confirmed the extension of Morant's time away from the team, having initially stated he would miss at least two games. Morant said in a statement he would use the time to "get help".

The 2022 NBA Most Improved Player missed those initial games on Sunday and Tuesday, in losses to the Los Angeles Clippers and Los Angeles Lakers respectively.

The 23-year-old All-Star will miss upcoming games against the Golden State Warriors, the Dallas Mavericks (home and away) and the Miami Heat.

The Grizzlies are third in the Western Conference with a 38-26 record, with Morant averaging 27.1 points, 6.0 rebounds and 8.2 assists per game this season.