Anthony Davis on Thursday spoke candidly about the concussion he suffered Nov. 16 against the New York Giants, saying that for days afterward it was as if he was living in a white fog.
“Or just having simple conversations – you just feel slowed down,” the 49ers’ starting right tackle said. “It’s scary. But that’s only like the first three or four days that you feel the intensity of it.”
Davis suffered the injury at the end of the game. He did some weight lifting and some cardiovascular work on Wednesday, which means he is progressing through the NFL’s post-concussion protocol. Davis, however, has not practiced since sustaining the injury.
He said he’s still not symptom-free, and his availability for Sunday’s game in Oakland remains up in the air. Jonathan Martin has started the past two games at right tackle and could start his eighth game of the season on the line against the Raiders.
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Davis’ ordeal shows how enigmatic a concussion can be. Some players return from them quickly and are ready to play in the next game. For others, the symptoms linger. Davis’ linemate, Mike Iupati, for example, suffered a concussion on Oct. 13 and then missed the following week’s game against Denver.
“I asked him if his symptoms lasted as long as mine – I started to get a little nervous,” Davis said.
Davis said he’s spoken with team owner Dr. John York, who mchairs the league’s Health and Safety Advisory Committee, which handles concussion-related issues. He said York told him to be smart about the issue and to wait until he’s 100 percent before returning to the field.
Davis said he’s glad the league has more procedures in place now to handle concussed players than it did only three years ago. And he says he’s always realized the sport he plays is dangerous.
“We put our health on the line every week,” he said. “It’s up to the players to take it seriously. I’ve always felt that way.”
Honor for Borland – Linebacker Chris Borland, who finished with double-digit tackles in four of the five games he started in November, is the NFL’s Defensive Rookie of the Month.
The honor is just the latest for Borland, a third-round draft pick who was playing special teams when starter Patrick Willis went out with a toe injury on Oct. 13. Borland has played every snap in Willis’ place since.
Borland’s highlight reel includes 13 tackles and two interceptions against the Giants. According to the NFL, he is the only player in the past 20 years to record 70 tackles and two interceptions in one month.
His main competition for Defensive Rookie of the Year, Baltimore linebacker C.J. Mosley, has started every game and currently ranks sixth in the league with 105 tackles. Both Mosley and Borland are on pace for 140 tackles.
Staley returns – Left tackle Joe Staley was back at practice after missing Wednesday’s session with an illness. Meanwhile, defensive coordinator Vic Fangio said cornerback Tramaine Brock (hamstring) and nose tackle Glenn Dorsey (arm) are unlikely to play Sunday.
Read Matt Barrows’ blogs and archives at www.sacbee.com/sf49ers.