The Nevada State Athletic Commission (NSAC) tested UFC Light Heavyweight Champion Chuck Liddell for drugs after his incoherent appearance on "Good Morning Texas" on March 1, according to a Los Angeles Times article.
Liddell passed the random screening.
According to NSAC Executive Director, Keith Kizer, it should be enough to clear "The Iceman" of consuming banned, illegal and recreational substances, which was what most believed to be the cause of his haggard appearance.
Here's a snip:
"He's [Liddell] been tested several times and has never ran afoul of our tests. Chuck was in a weird state on that show. I don't blame people for being concerned about him, but he silenced his critics."
Lunesta (a prescription sleep aid), Nyquil, pneumonia, fever and lack of rest was the potent recipe that apparently knocked the UFC 205-pound champion on his ass.