SANTA CLARA, Calif. - Anthony Davis has good perspective while dealing with the first concussion he's ever dealt with playing football.
"I always realized it was we put our health on the line every week," Davis said. "It’s up to the players to take it seriously. So I always felt that way."
Davis Friday was ruled out of the 49ers' upcoming must-win game against the Oakland Raiders.
While often quiet and succinct, Davis is normally thoughtful when speaking on the record to reporters. And he was willing to let his social media following know about his concussion following the win over the Giants when he suffered the concussion late in the fourth quarter.
He tweeted during the flight back to the Bay Area: "2nd to last play of the game I got a spinning elbow to the face. I was literally knocked out for a sec. I'm officially an NFL player now."
His second tweet, moments later: "I remember waking up to Harbaugh saying "get him up and off the field!, We don't want the clock to stop!" lol Can't make this s--- up."
Davis' description of the feeling inside his head after the concussion was telling, indicating he's unlikely to play this week against when San Francisco travels to play its Bay Area rival Oakland Raiders after revealing he is still symptomatic.
"When you look out it’s a white fog. Or just having a simple conversation, you just feel slowed down. It’s scary. But that’s only like the first three or four days, you feel the intensity of it," Davis said. "But each day it gets better."
Before this season, Davis began his career without missing a start, but that 64-game streak came to end in the season opener after he tweaked a hamstring late in training camp. Davis didn't participate in the offseason program after undergoing shoulder surgery following 2013, when he played with the injury for the majority of the year.
And when he did make his season debut in Week 4's win over the Eagles, it lasted just a quarter before his left leg got rolled into on a sack of Colin Kaepernick, spraining his MCL and tweaking his ankle. He returned to string together four consecutive starts, then suffered the concussion in New York, putting Jonathan Martin back on the field. The former Miami Dolphin is likely to make his eighth start of 2014 Sunday in Oakland.
The revolving door at right tackle has been emblematic of the 49ers' offensive struggles this season. The offensive line has been wildly inconsistent, leading to a running game that ranks 12th in the league, which isn't a bad number. But comparatively it's a significant fall from the last two seasons when it ranked third in both 2012 and 2013.
Martin has surrendered six sacks on the year, according to Pro Football Focus, giving him the team lead.
Over the summer, the NFL agreed to a $870 million settlement with former players after more than 4,500 alumni took part in a suit against the league for damages relating to brain trauma.
Player safety, particularly relating to head injuries, has been emphasized drastically in recent seasons leading to changes both on and off the field. Players must now pass concussion tests by third-party doctors on the sideline, not team physicians, in order to avoid any potential conflicts of interest. Referees are also instructed to be more mindful of players dealing with potential head injuries.
"There (were) less things put in place to protect the players," Davis said. "I am fortunate that I have those things in place now."
Davis' symptoms have improved enough this week to return to lifting weights and doing cardio, but he has yet to practice with the team since the concussion.
49ers injury report
T Anthony Davis (concussion), DT Glenn Dorsey (forearm), TE Vance McDonald (back)
CB Tramaine Brock (hamstring), S Raymond Ventrone (groin)
WR Michael Crabtree (knee), CB Chris Culliver (shoulder), WR Bruce Ellington (ankle), RB Carlos Hyde (shoulder), WR Steve Johnson (knee), WR Brandon Lloyd (quadricep), DE Ray McDonald (finger), DE Justin Smith (back), T Joe Staley (illness)
Raiders injury report
S Jonathan Dowling (back), TE Brian Leonhardt (concussion), T Menelik Watson (ankle, foot)
CB Tarell Brown (foot), LB Sio Moore (hip), CB Neiko Thorpe (hand)
RB Latavius Murray (concussion)