Matt Maiocco, of the Santa Rosa Press Democrat, reports San Francisco 49ers SS Vickiel Vaughn (hand) suffered a broken hand during training camp for NFL Europa. He is expected to miss four to six weeks.

The 49ers will likely sign undrafted free-agents S Jake Patten (Virginia Tech), LB Steve Dildine (Washington State) and C Sean Estrada (University of Pennsylvania).

Information from KFFL.com