Jacobs showing dramatic improvement

August 31, 2012, 1:33 am
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SAN FRANCISCO -- Running back Brandon Jacobs, wearing gray sweats, emerged from the 49ers locker room Thursday evening and broke into a slow jog.Jacobs, who sustained a left knee sprain Aug. 18 against the Houston Texans, has made noticeable progress and remains in the picture to be available when the 49ers open the regular season Sept. 9 against the Green Bay Packers. A week ago, he was hobbling around the 49ers' practice facility with the assistance of crutches.
Jacobs was one of five 49ers who did not take part in warmups prior to Thursday's exhibition finale against the San Diego Chargers at Candlestick Park.The others who did not suit up for the game were receiver Ted Ginn (right ankle), tight enddefensive lineman Demarcus Dobbs (left calf), outside linebacker Parys Haralson (undisclosed) and receiver Mario Manningham, who attended his grandfather's funeral on Thursday. --Rookie outside linebacker Cam Johnson, who has not suited up for an exhibition game due to a knee condition, took part in pregame warmups.--Outside linebacker Aldon Smith (right hip) also was dressed and apparently available for the game. Smith took part in warmups Sunday in Denver but did not see action.--Running back LaMichael James (ankle) and tight end Delanie Walker (knee) also took part in warmups. James did not travel to Denver last week. Walker sat out the past two exhibition games.--Outside linebacker Eric Bakhtiari, who sustained a concussion Sunday against the Denver Broncos, took part in pregame warmups after being limited in practice during the week. Rookie guard Joe Looney entered the game as the 49ers' third center after the club waived Jason Slowey and Chase Beeler this week. Looney practiced delivering snaps -- both under center and shotgun -- to reserve quarterbacks Josh Johnson and Scott Tolzien during pregame warmups.