John Elway's long-time sports agent and friend Jeff Sperbeck fatally injured in golf cart accident

Sports agent Jeffrey Sperbeck was fatally injured over the weekend in a golf cart accident in the Riverside County community of La Quinta. Sperbeck, 62, was at the Madison Club, a private golf community where former Denver Broncos quarterback John Elway — a long-time friend and client of Sperbeck’s — owns a residence, NBC affiliate KUSA in Denver reported. An…