SANTA CLARA – Sunday's weather forecast for Foxborough, Mass., calls for about 39 degrees with showers throughout the day.

No sweat, said 49ers quarterback Colin Kaepernick, who had plenty of rough-weather games at Nevada, including his most memorable, a 34-31 win over Boise State in 2010.

"It was about 20 degrees at kickoff," Kaepernick said Wednesday.

Kaepernick promises to be moving briskly Sunday, not because of the temperature, but because the 49ers have been late breaking the huddle in recent weeks, prompting delay-of-game penalties and forcing coach Jim Harbaugh to call timeouts.

The 49ers used all three timeouts with nearly a quarter remaining Sunday against Miami in what was, at that point, still a close game.

"It looked slow on those particular plays – the calling of (the play) in the huddle and then the breaking of it," Harbaugh said this week. "From the Pop Warner days, coaches have been on you about, 'Get up to the line of scrimmage, get set.' Sharp, crisp, the way you break the huddle and get lined up and shift motion. And that was a little slower."

Bakhtiari back – With special-teams player Demarcus Dobbs (knee) on injured reserve, the 49ers welcomed a familiar face, linebacker Eric Bakhtiari, who appeared in three games earlier this year.

Bakhtiari, who played for Harbaugh at the University of San Diego, spent the offseason with the 49ers but was cut before the season began. He was re-signed while fellow outside linebacker Clark Haggans served a three-game suspension but was released again when Haggans returned.

The 49ers still have a roster opening because of running back Brandon Jacobs' three-game suspension. Harbaugh would not explain the reasoning behind the suspension.

"The league has a process when you suspend a player that there's a process that you go through," Harbaugh said. "So you're really not in a position to be talking about that."

Jacobs no longer has a locker; it's now being used by Bakhtiari.

Men in black – Four 49ers were in black, no-contact jerseys to begin Wednesday's practice: wide receiver Mario Manningham (shoulder), outside linebacker Aldon Smith (shoulder), fullback Bruce Miller (shoulder) and linebacker/special teamer Tavares Gooden (ribs).

Of that group, Manningham's injury appears to be the most severe. He missed Sunday's game and did not have his helmet for the start of practice. All four were listed as limited on the 49ers' practice report.

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