The New Orleans Pelicans are still unable to give a timeline for Zion Williamson's return from injury with the playoffs fast approaching.

Williamson has not played for the Pelicans since injuring his right hamstring against the Philadelphia 76ers on January 2.

The 22-year-old withdrew from February's All-Star game after failing to recover from the injury, before then aggravating the damage to prolong his time on the sidelines.

Providing another update-of-sorts on Williamson on Thursday, Pelicans vice-president of basketball operations David Griffin confirmed there is still no return date set, even with the team having now clinched a play-in berth.

"After further evaluation, it has been determined that Zion Williamson will continue his rehabilitation and conditioning regimen," Griffin said. 

"We will continue to monitor his progression and updates will be provided as warranted."

Injury-plagued Williamson has struggled to remain fit since being taken with the first overall pick by New Orleans in 2019, missing the entire 2021-22 season with a broken foot.

He has played just 29 times this season, averaging 26.0 points and 7.0 rebounds.

Barring a late rally, the Pelicans will have to go through next week's play-in tournament to make the postseason, which begins on April 15.