Hall of Fame Broncos quarterback John Elway was behind the wheel when his longtime agent, Jeff Sperbeck, fell off a golf cart Saturday night and suffered injuries that have left him on life support, according to TMZ.

TMZ reported Tuesday that former Denver Broncos star John Elway was behind the wheel of a golf cart when his longtime agent and business partner, Jeff Sperbeck, fell off and hit his head. Elway and Sperbeck are longtime friends and business partners,

Jeff Sperbeck, friend and agent of former NFL quarterback John Elway, died of blunt head trauma suffered during a golf cart accident on April 26, according to a coroner's report described by TMZ Sports. The Riverside County Sheriff's Office Coroner's Bureau has ruled Sperbeck's death as an accident, according to TMZ.