SANTA CLARA -- Colin Kaepernick is slated to play in Thursday night's exhibition finale, and for the 49ers' sake, they'd certainly like a repeat of last year's cameo.

Kaepernick played only the first series but delivered a touchdown drive in the 2013 exhibition finale at San Diego.

That history isn't exactly on Kaepernick's mind entering Thursday's game at Houston.

"I don't really remember last year's preseason," Kaepernick said. "I'm more worried about the regular season. When we go out there, we want to be productive."

The 49ers have yet to produce a touchdown drive in Kaepernick's seven series of work this exhibition season. His only scoring drives have led to a pair of field goals, including one in his final series of Sunday's 21-7 win over the Chargers.

The 49ers rank last in the league by averaging just eight points and 239.3 yards per game. Their combined passer rating is a league-low 56.4, including Kaepernick's 69.3 rating on 12-of-22 passing for 115 yards with no touchdowns or interceptions.

Kaepernick has shrugged off such stats by citing how this is just "preseason" football.

"I've never seen worrying help anyone's problems or help anyone get better," Kaepernick said. "So we're not going to worry."

Perhaps more important, he's remained healthy amid several hits while preparing for his second full season as the starter.

Kaepernick is not concerned about what peril he might face Thursday if the Texans start J.J. Watt and other top defenders. Instead, Kaepernick vouched for what's been a makeshift offensive line.


Advertisement

"Our offensive line is probably the most in-tune offensive line in the league, I'd say, as far as knowing what we're doing, what their assignments are and being on top of things," Kaepernick said. "When you have a physical mistake, you don't go back to the drawing board."

  • Outside linebacker Aldon Smith maintained his media silence that's followed his Aug. 7 meeting with NFL commissioner Roger Goodell regarding potential discipline. Said Smith: "I'm not going to answer any questions. I've got nothing to say."

    The 49ers expected the NFL to announce before the regular season whatever discipline or suspension Smith faces for his off-field transgressions since 2012.

    Whatever ensues, defensive coordinator Vic Fangio is prepared to adjust his personnel at outside linebacker if Smith is suspended. "All the guys that may play for him -- (Dan) Skuta, (Corey) Lemonier, (Aaron) Lynch, (Chase) Thomas -- have been getting a lot of reps, so they're all ready to go," Fangio said. "It's more of an issue when it happens in the middle of a season ... like it happened last year, and then there's no time to adjust."

    Fangio said there's a "good chance" that last year's Skuta-Lemonier platoon could be summoned again. "It'll be some combination," Fangio said. "It won't just be one guy."

  • Outside linebacker Ahmad Brooks did individual conditioning instead of team drills. While it's unknown if Brooks is injured, Fangio said: "A few extra pounds on him now are holding him back, and we're trying hard to get that off him."

  • Inside linebacker Shayne Skov, an undrafted rookie out of Stanford, remains in the running for a roster spot. Skov insists his speed shouldn't be an issue, telling reporters: "Watch me run on special teams and kickoffs. I'm not 5 yards behind anyone. I'm right with everyone else. I feel great."

    A 2011 knee injury and concerns about his speed derailed Skov's shot at getting drafted, even though he was Stanford's leading tackler the last three seasons. Skov remains an underdog to make Saturday's 53-man roster. But in each of the past three years, an undrafted rookie has stuck around to play under Jim Harbaugh, Skov's former coach at Stanford.

  • Antoine Bethea (concussion) was fully cleared to practice, while fellow safety Bubba Ventrone (hamstring) only stretched with the team.

    For more on the 49ers, see Cam Inman's Hot Read blog at blogs.mercurynews.com/49ers. Follow him on Twitter at twitter.com/CamInman.

    THURSDAY'S EXHIBITION
    49ers (1-2) at Houston (2-1), 5 p.m. KPIX