On Friday, San Francisco 49ers safety Jimmie Ward was placed on the team's physically-unable-to-perform list. The designation means that Ward will not count against the 49ers' 90-man roster and the team can activate him at any time prior to the final cuts of training camp. The 49ers are transitioning to a single-high safety scheme on defense and Ward is expected to fill that role.

The PUP designation also meant that the injury, reported to be his hamstring, occurred during an official football activity.

San Francisco 49ers head coach Kyle Shanahan offered an update on the injury following the team's first training camp practice.

"It's unfortunate for him and for us, obviously," Shanahan said. "He tweaked it halfway through it. We don't think it was a full pull or anything but we want to be smart and safe with it. You never know with those things how long they'll take but don't think it's anything too serious but we're definitely going to be safe with it."

Jaquiski Tartt filled in for Ward during Friday's practice. Shanahan also shared his thoughts on Tartt.

"I think he's come a long way since we first got here," Shanahan said. "He's gotten in great shape. He did that throughout phase one, two, and three. He came back yesterday even in better shape. I'm really excited about him. He's a guy who can run and hit. We'll see how he plays in the system and how fast he can play once he gets out there."