Two-time 49ers All-Pro tackle Keith Fahnhorst dies at 66

San Francisco 49ers (Getty Images)

Keith Fahnhorst, a two-time All-Pro and two-time Super Bowl winner with the 49ers, has died at the age of 66, San Francisco announced Thursday.

Fahnhorst was a second-round draft pick out of Minneapolis in 1974 by the 49ers. He played all 14 years of his NFL career with the 49ers.

The two-time All-Pro tackle was a member of the Super Bowl 16 and 19 teams with the 49ers. He was named to the Pro Bowl in 1985. After playing his 14 seasons with the 49ers, Fahnhorst worked as a stockbroker.

He was forced to quit playing in 1987 due to a neck injury he sustained.

Fahnhorst died Tuesday. The cause of death has not been announced though he did speak about his battle with polycistic kidney disease in recent years.