Veteran nose tackle Glenn Dorsey is back on the 53-man roster, with the club creating a spot with Ian Williams going on season-ending injured reserve with a fractured left lower leg, the club announced. Dorsey sustained a torn left biceps early in training camp and underwent surgery on Aug. 4. He returned to practice three weeks ago, and Monday was the deadline for the club to activate him to the 53-man roster. Williams sustained his season-ending injury in the first half of last week's game against the New Orleans Saints. Quinton Dial started in Williams' spot on Sunday in the 49ers' 16-10 victory over the New York Giants. http://www.csnbayarea.com/49ers/49ers-activate-dorsey-place-williams-ir
