Third-string Denver Broncos' quarterback Darrell Hackney was arrested early Saturday on suspicion of driving under the influence. Police spokesman Brad Johnson said the 24-year-old was pulled over about 2:20 A.M. by an officer who found probable cause for the investigation. Johnson did not release other details of the arrest which was reported by KUSA-TV in Denver. Hackney was processed and released into the custody of a sober third party.