49ers HC Kyle Shanahan praised fifth-round S Marques Sigle‘s performance in their preseason game against the Broncos and could see him competing for a starting role.

“Yeah, I’d say so,” Shanahan said, via Matt Maiocco of NBC Sports. “I think there’s a lot of open competition there. I thought he had a really good game, special teams, and on defense, so I wouldn’t rule him out for that.” • Shanahan said G Dominick Puni has a possible PCL injury and could miss a few weeks. (Matt Barrows)

Cardinals first-round DL Walter Nolen remains on the physically unable to perform list, rehabbing from injury, and has not been on the practice field since the offseason program. Cardinals HC Jonathan Gannon was asked if Nolen would be ready to play in Week 1.

“He’s doing well,” Gannon said, via Tyler Dr

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