Lamar Odom

AP Photo/Evan Agostini

Lamar Odom is fighting for his life. 

E! News has learned that the former professional athlete's condition remains "critical" after he was found unconscious at a Nevada brothel. Doctors intubated Odom, who has yet to regain consciousness, before he was transferred via ambulance to a local hospital in Las Vegas. 

Odom was discovered in his room at Dennis Hoff's Love Ranch South on Tuesday by a member of the staff following days of partying. Employees immediately called 911 and followed the emergency operator's instructions to put Odom on his side when he began spitting up liquid. A source tells E! News were no illicit drugs found in his room.

E! News has also learned that the prognosis does not look good for Odom.

Khloe Kardashian's ex has a history of substance abuse. 

In Aug. 2013, he was arrested on suspicion of driving under the influence. Days later, he checked into a treatment facility near Los Angeles, although less than 24 hours later, he checked out of the facility.

—Reporting by Ken Baker

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