Fullback Trey Millard (44) and running back Marcus Lattimore (38) walk on the practice field during the San Francisco 49ers' NFL football rookie camp in Santa Clara, Calif., Friday, May 23, 2014. (AP ... more 
Fullback Trey Millard (44) and running back Marcus Lattimore (38) walk on the practice field during the San Francisco 49ers' NFL football rookie camp in Santa Clara, Calif., Friday, May 23, 2014. (AP Photo/Jeff Chiu) less 
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Associated Press | Photo By Jeff Chiu
Fri, May 23, 2014 7:33 PM EDT