Zion Williamson has been ruled out of the New Orleans Pelicans' meeting with the Dallas Mavericks on Tuesday after suffering a posterior hip contusion, joining team-mate Brandon Ingram on the sideline.

Williamson was originally listed as questionable after sustaining the injury as a result of a heavy fall in Sunday's 122-121 overtime loss to the Utah Jazz.

Coach Willie Green said Williamson's injury did not seem serious on Monday, but the team have now revealed he will miss Tuesday's game.

Williamson is averaging 22.0 points and 6.7 rebounds per game this season after missing the entirety of the last campaign with a foot injury.

The Pelicans, who won their first two games of the season after being tipped to mount a challenge in the Western Conference, will now be missing several key men for Tuesday's encounter.

Forward Ingram is subject to the NBA's return-to-participation protocol after suffering a concussion against Utah, while Herb Jones has also been ruled out after hyperextending his right knee.