And the 49ers might need Abdullah to play in the preseason this year if James misses significant time. Without him, their running backs are Christian McCaffrey, who probably won't play in the preseason, Isaac Guerendo, who is injury-prone, and Corey Kiner, an undrafted free agent rookie. So they need bodies.

This has not been the greatest offseason for Jauan Jennings.A nagging calfinjury has kept the San Francisco 49ers wide receiver sidelined for most oftraining camp, and now, he’s suffered a setback.On July 27,

The 49ers posted a statement on social media shortly after the announcement on KNBR: “The 49ers family extends our unwavering love and support to Greg Papa and his family following his recent cancer diagnosis. We wish him a speedy recovery and look forward to welcoming him back to the radio booth as the ‘voice of the 49ers’ whenever he is ready.”

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.

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.