SANTA CLARA -- Linebacker Reuben Foster is expected to be sidelined for multiple games after tests revealed he sustained a high-ankle sprain Sunday in his NFL debut.
"It's a high ankle sprain,” 49ers coach Kyle Shanahan said on Monday. “Not exactly sure on the timeline. We're going to put him in a boot for a little bit."
It is common for players with high-ankle sprains to be sidelined four to six weeks. Shanahan said he was not aware of the exact severity of Foster's injury.
Foster sustained the injury on his 11th play on defense. Foster had three tackles and one pass broken up before the injury.