SANTA CLARA -- It did not look good for 49ers linebacker Darius Fleming, who grabbed his left knee in pain and was clearly thinking the worst when he went down during a 7-on-7 drill early in Tuesday's practice.
But after getting examined by the team's training staff, Fleming got to his feet under his own power and watched the remainder of practice from the sideline. Coach Jim Harbaugh said he did not know Fleming was injured. No injury update was available.
Hours later, Fleming was seen limping to his truck in the team's parking lot. He was not taken into the locker room for further evaluation. As he left the team's facility, he was not using crutches or wearing a brace. The injury is not believed to be serious, but Fleming is expected to miss some practice time.
Fleming's rookie season came to an end shortly after the 49ers selected him in the fifth round of last year's draft. He sustained a torn ACL in his left knee during one of the first drills of the team's rookie minicamp. He spent the season on injured reserve.
Fleming appeared to twist his knee Tuesday as he landed after leaping to cover a pass intended for rookie tight end MarQueis Gray. When Fleming remained on the ground for an extended period of time, nose tackle Ian Williams rushed over from a nearby field to check on him. After awhile Fleming was standing and flexing his knee.
--Dan Skuta, who served mostly as a backup inside linebacker with the Cincinnati Bengals, is playing outside linebacker with the 49ers.
"He's got some good versatility outside and inside," Harbaugh said. "But, right now, (we are) mainly working as an outside linebacker. But he has the ability to go inside as well."
--British Olympian Lawrence Okoye continues to work and learn the game of football after signing with the 49ers as an undrafted defensive end.
"(He is) doing a fine job," Harbaugh said. "There are a lot of things that are new. But (he is) working very hard at it and doing it with a very good attitude. (He is) showing up, he's working hard and he's listening. And (I) think good things will happen when you do that."
--Newly signed wide receiver and special-teams standout Kassim Osgood sat out a while after taking a pass from B.J. Daniels in the facemask. The pass got to Osgood just as he was turning to find it on one of his early routes in practice.
Osgood signed a one-year deal with the 49ers on Tuesday to compete for a job on special teams. He was named to three AFC Pro Bowl teams for his play on special teams while with the San Diego Chargers.
"I like the way he runs down and covers kicks," Harbaugh said. "But there's a lot more to his game. (He is a) very good tackler. Even in 10 years he's been in the league, you watch him, he's first or second every time running down on kickoffs."
--All-Pro inside linebacker NaVorro Bowman has not re-watched the 49ers' Super Bowl loss to the Baltimore Ravens. And he said he will never watch it.
"I let it go, man," Bowman said. "It still haunts us. It's a game where you hear you don't get back to a lot of times. But that's our goal, to get back there."