The San Francisco 49ers added outside linebacker Clark Haggans to the active roster and released linebacker Erik Bakhtiari. Haggans' three-game suspension following a DUI arrest that resulted in jail time ended Tuesday and the 49ers had until 4 p.m. to make a decision on his roster spot. Haggans was arrested in April 2011 and served time in June after pleading guilty to DUI charges and had a hearing before NFL commissioner Roger Goodell in September. Haggans, 35, was signed to replace Parys Haralson on the roster. Haralson was placed on injured reserve with a torn left triceps.