SANTA CLARA — Another 49ers defensive line is done for the season, but, again, it’s not one of their marquee starters.
Backup defensive tackle Jullian Taylor tore an anterior cruciate ligament in Thursday’s practice, and he will be replaced on the roster by Kevin Givens, who’s spent all season on the practice squad.
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Strong safety Jaquiski Tartt (ribs) is doubtful to return from a three-game absence when the 49ers (12-3) chase the NFC playoffs’ No. 1 seed and the NFC West title against the host Seattle Seahawks (11-4).
With defensive end Dee Ford (hamstring) still out, Givens could make his NFL debut Sunday night to help with the defensive line’s rotation, which has been hit hard by season-ending injuries to D.