Papa announced the news in a written statement on the station's social media profile on Friday. It was also read on-air by KNBR program director Mike Hohler at the start of the midday show. "As I fully focus on my treatment and work toward a full recovery,

The 62-year-old, among the most recognizable voices in sports broadcasting in Northern California, announced he will step away from his daily radio show to focus on treatment for an unspecified cancer.

The San Francisco 49ers made several changes, announcing a flurry of roster moves as the team navigates its way through training camp.