I think it will be a good game. I think Detroit will move the ball and put up some points. Their D, especially secondary is suspect but they have a good pass rush and the 49ers OLine is not good. If they can stop the run and get after Purdy, keep the 49ers from having long drives and tiring out their D, I think they have a good chance to win. I expect the 49ers linebackers will be much more of a challenge for Detroit's over the middle game but they have a lot of weapons, they will move the ball. Hopefully 49ers can force a couple turnovers.