The San Francisco 49ers are preparing for their Week 4 contest against the Los Angeles Chargers on Sunday at the StubHub Center in Los Angeles, California.
The 49ers secondary is the biggest concern heading into the game. If Jaquiski Tartt (shoulder) is unable to play, it will likely feature Ahkello Witherspoon and Jimmy Ward as the cornerbacks with Adrian Colbert and Antone Exum as the safeties. Cornerback Richard Sherman (calf) has been ruled out while Tartt is doubtful. Colbert (hip) is listed as questionable.
Guard Mike Person did not appear on Friday's injury report. Head coach Kyle Shanahan was asked if he is "back to normal."
"It depends on what you consider normal, but he's good to go," he responded.
Matt Breida (knee) is listed as questionable. Shanahan said the running back had been up and down during practices this week and the team will see how he feels on Sunday before determining his status.
"He got a little bit more yesterday," he said. "We kept him limited today. Just trying to manage the wear and tear. But questionable is better than doubtful so hoping it works out."
Below are the official injury reports for the 49ers and Chargers. Also included are Friday's practice participation reports, which were provided by the 49ers Communications staff.
San Francisco 49ers
Out
G Joshua Garnett (toe), CB Richard Sherman (calf)
Doubtful
S Jaquiski Tartt (shoulder)
Questionable
RB Matt Breida (knee), S Adrian Colbert (hip), RB Alfred Morris (knee)
Los Angeles Chargers
Out
T Joe Barksdale (knee), DE Joey Bosa (foot), LB Kyzir White (knee)
Questionable
WR Keenan Allen (knee, tooth), WR Travis Benjamin (foot)
San Francisco 49ers Friday Practice
Did Not Participate In Practice
G Joshua Garnett (toe), CB Richard Sherman (calf), S Jaquiski Tartt (shoulder)
Limited Participation in Practice
RB Matt Breida (knee), S Adrian Colbert (hip), RB Alfred Morris (knee)
Full Participation in Practice
WR Marquise Goodwin (quadricep), G Mike Person (knee), T Joe Staley (not injury related), CB Ahkello Witherspoon (ankle, hip)
Los Angeles Chargers Friday Practice
Did Not Participate In Practice
T Joe Barksdale (knee), DE Joey Bosa (foot), LB Kyzir White (knee)
Limited Participation in Practice
WR Keenan Allen (knee, tooth), WR Travis Benjamin (foot)
Full Participation in Practice
T Russell Okung (knee), RB Derek Watt (thumb)