49ers OLB Manny Lawson will miss the rest of the season with a torn ACL.
The No. 22 overall pick in 2006 was hurt in practice Wednesday. Lawson was tied for second on the 49ers in tackles, and had a pass breakup and a sack through two games. He was a versatile cornerstone, so it's a crushing blow to San Francisco's defense.
Source: Santa Rosa Press Democrat
Yes it was him, he leads the team with 16 tackles right now. He has showed major progession from his rookie year. Too bad this had to happen, lets hope he will be back next year playing the same way he started out this year.