Billy Sims Is Expected to Announce Retirement

Billy Sims, the most successful running back in Detroit Lion history, is expected to announce his retirement at a news conference today, team officials said.

Sims, 30, hasn’t played since suffering a knee injury midway through the 1984 season. He underwent surgery for a torn ligament but has been unable to come back despite intensive rehabilitation.

The Lions’ all-time leader in touchdowns and rushing yardage, Sims already is believed to have filed a claim on an insurance policy he took out before the 1984 season. The policy guarantees payment of Sims’ $4.5-million contract in the event of a career-ending injury.

Sims was the Lions’ first pick in the 1980 draft after winning the Heisman Trophy at Oklahoma. He is the Lions’ all-time rushing leader with 5,106 yards and 47 touchdowns.