Five 49ers to watch in pivotal Week 12 NFC showdown vs. Packers

There is not a lot of clarity at this stage of the week for the 49ers. It seems likely the 49ers will not have Brock Purdy, Trent Williams and Nick Bosa in uniform for their all-important game Sunday against the Green Bay Packers at Lambeau Field. One or more of those players might not be available due to injuries. Heck, it's possible all three will have to sit this one out. Purdy tossed a few warmup passes on Thursday and left the field before the start of practice due to a right shoulder issue. Williams (ankle) and Bosa (hip/oblique) were not seen on the practice field Wednesday or Thursday. Obviously, if Purdy and Williams are not available, backup quarterback Brandon Allen and swing tackle Jaylon Moore become the most important players on the team. But we're going to focus on the players who definitely will play and will unquestionably need to step it up in any event: RB Christian McCaffrey The production in the running game has not been as consistent for Christian McCaffrey in his first two games back from experiencing bilateral Achilles tendinitis. He played 115 snaps in two games or 91 percent of the 49ers' offensive plays. But he has just 118 yards on 32 carries. His 3.7...