BILLINGS, Mont. -- Former NFL running back Travis Henry and a co-defendant pleaded not guilty Thursday to federal cocaine trafficking charges.
The 30-year-old Henry and 29-year-old James Mack of Bow Mar, Colo., were arrested Sept. 30 in the Denver area.
Authorities say the two had plotted to supply at least 5 kilograms of cocaine to customers in the Billings area. They were arrested in an undercover sting operation after authorities said an associate was pulled over in a traffic stop in Montana and found to have cocaine and marijuana.
Both men are free on bond.
In a brief arraignment hearing Thursday, Magistrate Judge Carolyn Ostby admonished Henry for violating the terms of his release on at least one occasion.
"The conditions for release are not optional," Ostby told Henry, who played for the Broncos, Titans and Bills in a seven-year NFL career. "Your pretrial release can be revoked."
Federal prosecutors in Billings said they did not know the details of the violation, but that it apparently occurred in Denver.
Court documents list numerous release terms for Henry, including a ban on drinking alcohol, travel restricted to Colorado and Montana, random substance-abuse testing and home detention.
The defendants each face one charge of conspiracy to possess cocaine with intent to distribute and two charges of possession with intent to distribute, and distribution of cocaine.
Each count carries a minimum of 10 years to life in prison, a $4 million fine and at least five years of supervised release.
Henry was released by the Broncos in June after playing one season of a four-year, $22.5 million contract.
Lawyers for the two men declined comment at Thursday's arraignment.
The case was assigned to U.S. District Judge Richard Cebull.