SANTA CLARA, Calif. (AP) -San Francisco 49ers defensive end Melvin Oliver tore a ligament in his right knee during organized team activities this week.
Oliver, a sixth-round pick from LSU in 2006 who started 14 games for the 49ers last season, was injured during a non-contact drill Tuesday. Team doctors discovered the torn medial collateral ligament Wednesday.
Oliver made 50 tackles and returned a fumble for a touchdown last season, but his role was expected to diminish this season in San Francisco's 3-4 defensive alignment. The 49ers signed free agent Aubrayo Franklin, and they expect former Eagles defensive lineman Sam Rayburn to sign a one-year contract this weekend.

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