^^^^9ers signed CB Karl Paymah to a one-year contract.
Paymah, 27, can be a valuable special teamer, but the 49ers will be in trouble if he's forced into much defensive action. After flopping badly in coverage last year, the Vikings didn't even tender him a $1.226 million contract.
Free agent LB Akin Ayodele will visit with the Lions on Thursday night and into Friday.
The Niners let Ayodele leave the Bay Area without a contract after offering him only a clear-cut backup role. He wouldn't start in Detroit, either, unless the Lions are quietly planning to cut ties with Julian Peterson's big salary.
49ers ILB Patrick Willis recently underwent surgery to have the bursa sac removed from his knee.
The minor procedure is routine and won't cost Willis much offseason work, if any. The league's leading tackler last season, Willis also recently took home the 2009 Butkus Award, given annually to the NFL's best linebacker.