In footage obtained by the publication, the former NBA star could be seen slumped over on the floor after collapsing around 2:00am. Security rushed in to help Lamar, who appeared to be conscious after being picked up and placed back on the couch.
The person who shot the video told TMZ Sports that he saw the former athlete drinking for several hours before the incident. However, Lamar's rep reached out to the publication to say that he collapsed due to dehydration after an intense workout earlier in the day. They also said it was very hot in the club, adding that the star is "doing great."
Lamar has famously battled drug and alcohol addiction for years, with his addiction eventually resulting in his painful divorce from Khloé Kardashian. Their divorce papers were pulled when the star overdosed in a Nevada brothel in October 2015, before being finalised in December 2016.
Here's hoping Lamar continues his treatment and recovery.