SANTA CLARA -- Safety Jimmie Ward was cleared Wednesday morning to begin practicing with his teammates after missing nearly four weeks of training camp with a hamstring injury.
Ward underwent conditioning tests on Monday and Tuesday to complete the final hurdles before the club activated him off the physically unable to perform list.
Ward sustained a hamstring injury during the conditioning test on the eve of training camp.
Ward was moved to cornerback last season, where he started 10 games.
He finished the season on injured reserve with a shoulder injury. He was the 49ers' primary nickel back in his first two NFL seasons.
Jaquiski Tartt originally took over at free safety at the beginning of camp. But after Tartt missed significant practice time with a ribs injury, undrafted rookie Lorenzo Jerome stepped in.
Jerome started the 49ers’ first two exhibition games at free safety.