A costly penalty by a San Francisco 49ers defensive player led head coach Kyle Shanahan to bench him and confront him on the sidelines.

Walter Nolen III, a defensive tackle out of Ole Miss, was scouted by the 49ers, who instead took Mykel Williams with the No. 11 pick in the first round. Nolen went to the Cardinals at No. 16 and didn’t make his debut until two weeks ago because of a late-July calf injury.

The Arizona Cardinals‘ attempt to rebound from a divisional blowout was unsuccessful on Sunday, as they were dominated by the San Francisco 49ers to the tune of a 41-16

Head coach Kyle Shanahan said afterward that the 39-year-old may have suffered the type of injury that could lead to him missing some time. "We think he pulled it, but not sure. We'll have to check tomorrow," Shanahan said, per 49ers Webzone.

San Francisco 49ers running back Christian McCaffrey scores his third touchdown of the game against the Arizona Cardinals with a 4-yard run.

Wide receiver Skyy Moore returned the opening kickoff 98 yards and running back Christian McCaffrey got the final yard the Niners needed for a touchdown one play later. That made it 7-0 with 16 seconds off the clock in Arizona.

The Arizona Cardinals and San Francisco 49ers revealed their final inactives report for Week 11 - who's in, who's out?

The San Francisco 49ers gain a health edge with key players back. At the time, the Cardinals faced numerous injuries. Important information before kickoff.