Steelers safety Will Allen won't return to Monday's game at San Diego due to a left ankle injury, Chris Adamski of the Pittsburgh Tribune-Review reports.
Allen sustained the ailment in the first quarter, but not before recording two solo tackles to bring his season-long line to 31 tackles (26 solo), one interception, and one sack. In his stead, Robert Golden took over at strong safety.
Roethlisberger has a timetable of 4-6 weeks, which is typical for a sprained MCL. The concern is that he's also dealing with a nasty bone bruise that might actually take longer to heal than the sprain. However, recovery from the bone bruise is largely about pain management, and Roethlisberger's on-field toughness is beyond reproach.
Shazier was able to practice Thursday and Friday, but it appears as if he will need at least one more week until he returns to the field. The former first-round pick hasn't been able to play since Week 2, so his practice status will be worth monitoring next week.