Regarding tight end Jacob Wark (right knee), Tedford said the "initial report didn't sound good."
Check back shortly for complete coverage from here at the Horseshoe.
Final score: Ohio State 35, Cal 28
3:34 p.m. Cal defensive backs Marc Anthony and Alex Logan pick a heck of a time to lose Devin Smith, who is wide open for a 72-yard Ohio State touchdown.
Headed down to the field now. Back with everything from the locker room.
Ohio State 35, Cal 28 with 2:06 left in the fourth quarter
3:19 p.m.: Brendan Bigelow is having himself a day, scoring his second rushing touchdown on just three carries. Bigelow's 59-yard scamper ties this one up.
Ohio State 28, Cal 28 with 8:10 left in the fourth quarter
3:15 p.m.: Ohio State retakes the lead with a ruthlessly efficient 11-play drive. Braxton Miller recreates the Tim Tebow jump pass minus the jump for a 1-yard touchdown toss to Jake Stoneburner, then scores on the two-point conversion.
Ohio State 28, Cal 21 with 8:31 left in the fourth quarter
3:03 p.m.: Is the upset looming here at the Horseshoe? Zach Maynard scores on a 1-yard run to give Cal the lead with 12:26 left to play.
Cal 21, Ohio State 20 in the fourth quarter
2:42 p.m.: Vincenzo D'Amato goes wide left on a field goal for the second time today, but Cal has the ball back to start the fourth quarter.
Tight end Spencer Hagan was carted off with a right leg injury during the drive.
Ohio State 21, Cal 20 at the end of the third quarter.
2:15 p.m.: Cal was hanging around, but needed a spark. Boy, did sophomore running back Brendan Bigelow deliver. Bigelow put his hand down to regain his balance after spinning through a tackle, then exploded down the far sideline for a career-best 81-yard touchdown run.
It is the longest run ever allowed by the Ohio State defense at Ohio Stadium, and third-longest ever allowed.
Ohio State 20, Cal 14 with 7:07 left in the third quarter
1:37 p.m.: Cal avoids any further damage, but had a C.J. Anderson touchdown catch negated by a terrible holding call against tight end Jacob Wark.
The Bears get the ball to start the third quarter, with a chance to regroup.
Zach Maynard is 16-of-19 for 147 yards and one touchdown. Isi Sofele has 50 yards rushing on 11 carries. Keenan Allen is the leading receiver with 55 yards on six catches.
Ohio State 20, Cal 7 at the end of the first half
1:01 p.m.: Braxton Miller is putting on a clinic, throwing his second touchdown pass of the afternoon for a 20-7 Ohio State lead.
The sophomore quarterback is 8-of-11 for 124 yards, along with 61 yards rushing and a touchdown.
Ohio State 20, Cal 7 with 13:30 left in the second quarter
12:53 p.m.: A disastrous turn of events at the end of a solid first 15 minutes for Cal, as quarterback Zach Maynard was blasted on what should have been a pick-six for corner Bradley Roby. Then Cole Leininger shanked a punt to give Ohio State great field position.
Ohio State 13, Cal 7 at the end of the first quarter
12:45 p.m.: Is a shootout looming? Braxton Miller hits Devin Smith on a brilliant back shoulder fade for a 25-yard touchdown, one play after finding tight end Jake Stoneburner for a 40-yard gain down the hashes.
Ohio State 13, Cal 7 with 1:23 left in the first quarter
12:40 p.m.:What a response from the Cal offense, mixing up the run and pass perfectly to march 75 yards in six plays.
Freshman Chris Harper again shows his elusiveness in the open field, scoring on a perfectly blocked 19-yard slip screen from quarterback Zach Maynard.
Cal 7, Ohio State 6 with 2:38 left in the first quarter
12:32 p.m.: Remember what I wrote about containment? Well, even the most disciplined defender had no shot at stopping Ohio State quarterback Braxton Miller on an incredible 55-yard touchdown run.
Ohio State 6, Cal 0 with 5:11 left in the first quarter
12:10 p.m.: Cal forces an Ohio State punt, but loses outside linebacker Chris McCain again to injury.
McCain was replaced by redshirt freshman Nathan Broussard.
On offense, the Bears showed some promise early, until a well-timed corner blitz from Bradley Roby puts quarterback Zach Maynard off-schedule.
11:30 a.m.: Ohio State running back Jordan Hall is in uniform and going through pre-game warmups. Hall, the projected starter who cut his foot in the summer, is the second man up in early position drills.
His return would potentially take some of the load off of Buckeyes quarterback Braxton Miller.
11:20 a.m.: Outside linebacker Chris McCain (shoulder) and tight end Richard Rodgers (foot) are going through pre-game warmups and should be available.
10:55 a.m.: Some stats to digest ahead of today's game...
-Since the start of the 2007 season, Ohio State has only allowed 11 100-yard rushers, tied for third-best with BYU behind Alabama and Boston College.
-Ohio State has had 72 consecutive home crowds of more than 100,000.
-Cal wide receiver Keenan Allen has caught a pass in all 26 career games.
-Thanks to Allen, Cal is averaging 22.17 yards per punt return. Ohio State has allowed one return for seven yards in two games.
10:35 a.m. local time: Good morning from Ohio Stadium, emphasis on the morning. After traveling all day yesterday, my body isn't exactly adjusted to this early starting time. We'll see if the Bears fare better than your friendly neighborhood sports reporter.
Regardless, here is today's CSD On The Scene, previewing the game.
Dan Greenspan is the publisher of Cal Sports Digest and writes about the Pac-12 for Fox Sports Next. Follow him on Twitter @DanGreenspan.