Running back Jordan Mason left the game in the second quarter and was taken to the locker room for further evaluation. He returned briefly in the third quarter but couldn't continue and remained on the sidelines for the rest of the game.
"Jordan Mason, he had a shoulder AC sprain," Shanahan reported.
RELATED
Next week, the 49ers will begin preparing for their Week 7 matchup against the Kansas City Chiefs, and Mason's status remains uncertain.
"We take it as good news," Shanahan added. "I mean, it doesn't guarantee this week or anything. He does have an AC sprain, but it was positive that it wasn't worse than that. So he'll be day-to-day [next] week, and hopefully, he'll be good for the game, but no guarantees.
"... Jordan's as tough as anybody, so I'm sure if he has a chance to play, he will, but we've got to see how the shoulder responds. We're only a day out."
Mustapha is day-to-day
Tests on Friday confirmed that rookie safety Malik Mustapha sustained a low-ankle sprain, making his status day-to-day as well.
Another kicker injury
For the second consecutive game, a 49ers kicker sustained an injury. Newly-signed Matthew Wright left the game with a shoulder injury while attempting to make a tackle on a kickoff return, the same way regular kicker Jake Moody was injured on Sunday against the Arizona Cardinals.
"We're still waiting for his MRI to get back," Shanahan explained. "He did dislocate it—or it came out for a little bit. ... It went back in, but we've got to find out more on it when we get the MRI."
Shanahan expressed concern about Wright's availability for Week 7, saying, "We're not sure. I mean, we know he'll have a chance, but we won't know for sure until we get that MRI back."
If Wright's injury is more severe, the 49ers will once again bring in kickers for tryouts.
Other injury updates
Shanahan also provided updates on the following players who didn't participate against the Seahawks:
- DT Jordan Elliott is continuing to rehab his knee injury. The 49ers will re-evaluate him early next week.
- The 49ers hope LB Demetrius Flannigan-Fowles, who has been dealing with a half injury, will return to practice next week.
- CB Charvarius Ward, who did not play against the Seahawks due to a bruised knee, is considered day-to-day.
The coach also confirmed that the 49ers would open rookie wide receiver Ricky Pearsall's practice window next week, giving the team 21 days to activate him from the non-football injury (NFI) list once that officially occurs. However, running back Christian McCaffrey's practice window will remain closed for now.
Related News
More San Francisco 49ers News
-
49ers' Kyle Juszczyk shares encouraging George Kittle injury recovery update
San Francisco 49ers tight end George Kittle continues to make encouraging progress in his recovery from the Achilles injury he suffered during last season's playoffs. After looking sharp during on-field workouts at Tight End University (TEU), optimism continues to grow that... -
49ers' Kyle Shanahan falls just short of AP's top 3 NFL head coaches
San Francisco 49ers head coach Kyle Shanahan is widely regarded as one of the NFL's brightest offensive minds. His performance last season—leading an injury-riddled roster to a 12-win campaign and a playoff berth—only strengthened that reputation. However, it wasn't enough... -
Brandon Aiyuk throws shade at Kyle Shanahan, 49ers
Disgruntled wide receiver Brandon Aiyuk continues to take shots at the San Francisco 49ers on social media. This time, Aiyuk sarcastically suggested the 49ers want him back—a scenario that, at this point, seems highly unlikely. In the process, he also appeared to take a... -
49ers' Kyle Shanahan labeled 'best in the business' by NFC West rival coach
The San Francisco 49ers opened last season with a 17-13 victory over the Seattle Seahawks in Week 1. The NFC West rivals didn't meet again until the regular-season finale, when first place in the division and home-field advantage were on the line. This time, the Seahawks went...