The NFL has officially hit December as playoff races are heating up around the league. In what was one of the wildest weeks in recent memory, 12 games were decided by seven-or-fewer points -- tied for the most in a single week in NFL history.

We saw likely playoff teams in the Chiefs (two points), Texans (three) and Vikings (one point) win narrowly as favorites again. Do you consider tight wins against shaky (or worse) opponents a cause for concern, or something to be encouraged by going into the postseason?

Sunday's marquee game of Week 13 features a battle between two likely playoff bound teams in the 9-2 Eagles and 8-4 Ravens. Both teams enter the contest fresh off of big primetime LA wins in Week 12, with the Eagles dominating the Rams on Sunday Night Football and the Ravens taking down the Chargers on Monday Night Football.