49ers sign Mylan Hicks, Justin Renfrow after tryouts

The San Francisco 49ers signed a pair of players after participating in tryouts during the team’s rookie mini-camp last weekend. The 49ers announced the signings of cornerback Mylan Hicks and tackle Justin Renfrow on Monday. Hicks is an undrafted free agent from Michigan State. Renfrow spent time with the Arizona Cardinals, Green Bay Packers and…