Ex NBA star, Lamar Odom Collapses again at the Nightclub as Security Rushes in to Help (Details, pics)

Odom Lamar's representative has revealed that he collapsed due to dehydration after an intense workout earlier in the day without the necessary fluids in his system. They also said it was very hot in the club, while adding... he's "doing great."

Lamar Odom collapsed at his VIP booth at a Los Angeles nightclub early Sunday morning
... TMZ reports.

Odom was at Bootsy Bellows on the Sunset Strip when several staffers and patrons noticed the ex-NBA star collapsed to the ground around 2AM.

As security and staffs rush in to help and he seems to be conscious.

It was gathered earlier that Khloe Kardashian's ex husband, Odom have been drinking for several hours before the incident.

The issue also is that Odom has a serious history with substance and drug abuse -- he almost died from a drug overdose at a brothel in 2015.

Odom has since gone to rehab and vowed to change his life -- but he's been partying a lot lately... From strip clubs to nightclubs.