San Francisco 49ers' Al Netter (65), Daniel Kilgore (67) and B.J. Daniels (5) during practice at the team's NFL football training facility in Santa Clara, Calif., Tuesday, June 11, 2013.
San Francisco 49ers' Al Netter (65), Daniel Kilgore (67) and B.J. Daniels (5) during practice at the team's NFL football training facility in Santa Clara, Calif., Tuesday, June 11, 2013. Marcio Jose Sanchez AP
San Francisco 49ers' Al Netter (65), Daniel Kilgore (67) and B.J. Daniels (5) during practice at the team's NFL football training facility in Santa Clara, Calif., Tuesday, June 11, 2013. Marcio Jose Sanchez AP