Breaking down Raiders vs. 49ers

Random thoughts about the Oakland Raiders' 17-3 loss at the San Francisco 49ers on Saturday night:

Oakland starting quarterback Jason Campbell went down late in the second quarter and he left the game with an undisclosed injury. He was favoring his hand. But the injury didn’t initially appear to be serious.

He played nearly the entire first half and it wouldn’t have made any sense if he re-entered the game. I’m sure more information will come out about his status, but I wouldn’t be surprised if it is minor. Campbell played well before his injury. But the sight of him going down in a heap must be nervous for Oakland as it hopes for a fast improvement by the offensive line.

Campbell was replaced by Trent Edwards. He wasn’t as effective as he was last week. Edwards made a bad choice and threw an ill-advised pass that was intercepted.

The Raiders’ moved the ball well at times, but still had trouble finding the end zone. They had to settle for four field goals and one score last week. Finishing drives has to continue to be a point of emphasis for Oakland.

For the second straight game, Oakland’s defense played well in the red zone.

San Francisco quarterback Alex Smith passed the ball at will at times and the Raiders’ secondary looked susceptible to the big play. Smith completed 8 of 13 passes for 126 yards. The 49ers also ran the ball very well and had a 53-yard touchdown run.

The Raiders’ defense has a lot of talent, but it has to continue to work on cutting down the big plays.

Receivers Darrius Heyward-Bey and rookie Denarius Moore both had two catches and played well. As did running back Michael Bush. Receiver Derek Hagan had three catches and he is making a push to make the final roster.

Linebacker Travis Goethel made several plays and don’t be surprised if he makes a push for serious playing time in the regular season.

UPDATE: The team is indicating that Campbell’s injury is not serious but he is going to take a concussion test.