Defensive lineman Tank Carradine will miss an extended period of time with a high ankle sprain sustained in the fourth quarter of the 49ers’ 41-39 loss to the Los Angeles Rams on Thursday night.
Coach Kyle Shanahan said on Friday the team was awaiting the results of an MRI examination. The 49ers could decide to place Carradine on injured reserve, which would make him eligible to return to action later in the season.
“We’re going to have to get that and really decide whether IR or not,” Shanahan said. “Because any time you have a high ankle sprain it’s going to be a while. We’re not exactly sure how long that’s going to be, but we’ll have to decide that probably Monday.”
The 49ers expect to be without the services of linebacker Reuben Foster and safety Eric Reid, too.
Also, fullback Kyle Juszczyk, safety Jaquiski Tartt and linebacker Brock Coyle are in the concussion protocol after sustaining head injuries on Thursday.
Although the 49ers’ medical staff no longer requires Foster to wear an orthopedic boot for his high ankle sprain, Shanahan said he would be shocked if the rookie is able to return to action Oct. 1 against the Arizona Cardinals.
“I’d be shocked if he came back this week,” Shanahan said. “I’d be surprised. We’re taking it week to week. I’m not really expecting him this week but You never know with some of these athletes. He might be there, but I’m not expecting it right now.”
Reid’s rehab is behind Foster’s, according to Shanahan. Reid sustained a left knee injury Sunday against the Seattle Seahawks and is expected to miss multiple games.
Speaking at his day-after-game press conference, Shanahan said he was disappointed that the 49ers’ pass rush did not apply more pressure to Rams quarterback Jared Goff.
“We didn’t affect the quarterback enough,” Shanahan said. “I thought we did a very good job against Seattle and we took a step back on that last night.”
When asked what he saw on the critical late-fourth-quarter play on which rookie receiver Trent Taylor was called for pass interference, Shanahan said, “I saw a very good route.“