Former NBA basketball player Lamar Odom is in critical condition after being found unconscious at a legal Las Vegas brothel yesterday afternoon.

He'd been partying for several days at the Love Ranch South in Pahrump, Nevada. It's owned by Dennis Hof, who also owns the brothel from the HBO show "Cathouse".

At around 3:00pm yesterday, one of the women went into Odom's room and found him unresponsive.

"We called 911, and the 911 told my staff what to do: turn him over on his left side," Hof said. "There was this terrible foaming stuff coming out of him. He was throwing up, a little bit of blood."

He was then taken to a local hospital, where he was still unconscious as of last night. He's in critical condition, breathing with the help of machines, and the prognosis doesn't look good.

There are reports that he was using an herbal Viagra substitute, but there's no word yet on any other substances. However, it wouldn't be a shock since drug issues were pretty much the reason his marriage to Khloe Kardashian ended.

But interestingly, TMZ says Khloe was on her way to his bedside yesterday, along with Kim Kardashian and Kris Jenner. And late last night they posted footage of him being transported to the hospital by ambulance.