Total: 47.50 | -105.00 Under
San Francisco can make the same claim. The 49ers allowed 17.5 ppg in the regular season, the fewest of any NFC team. Though the playoff numbers aren't as impressive, you just saw their defense stiffen and hold the Lions to 7 second half points.
The Chiefs have now seen 8 of their last 9 games finish with 46 or fewer points. Only 1 of their last 17 games has finished with more than 48. This will not be a high scoring game and the total is too high. Go with the Under!