Greg Papa is the radio voice of the San Francisco 49ers on KNBR. He's also covered the Giants and Athletics, the Oakland Raiders and Golden State Warriors for decades.

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 longtime KNBR host shared the news Friday, saying he is stepping away from broadcasting to focus on treatment. He did not disclose the type of cancer.