Full NFL predictions, picks for Sundays Week 18 slate

The Post’s Erich Richter makes his picks and predictions for Week 18 of the NFL season.Even without Brock Purdy this week, the 49ers were just 3.5-point underdogs to the Lions at home and are now +4.5 on the road to the Cardinals.How much do we think Purdy is worth to the spread? San Francisco played a really tight game with one of the league’s best offenses and now faces a terrible Cardinals run defense that has allowed five yards per carry since Week 10.

San Francisco is seconds in yards per play this season (6.3) and fifth in yards per play allowed (5.2).There is nothing statistically that shows the 49ers should be underdogs here as Joshua Dobbs prepares to start the season finale. Normally, the Giants would be 14-point underdogs or worse to the Eagles.

Now, the Giants’ “A-Team” will face the “C Team” of the 13-3 Eagles, who still have plenty of talent throughout their roster.It appears backup QB Kenny Pickett will sit as third-stringer Tanner McKee starts for Philadelphia.

McKee looked excellent in his NFL debut, but the Giants players are still trying to win games, for whatever that is worth.I wouldn’t bet it personally, but I expect the Giants to win a second game in a row as Brian Daboll makes his case to keep his job. Chicago has the fifth-fewest yards per play in the NFL over the past three weeks (4.7), and it has the lowest figure overall in the NFL this year (4.6).

Neither team is sitting their starters, so we’re going to get a fully operational Packers offense that has the fifth-best yards per play average.Chicago’s offensive line is hitting embarrassing levels — allowing Caleb Williams to be sacked 68 times, by far the most in the league. Michael Penix Jr.

is not all that and a bag of chips, but Bijan Robinson certainly is.He is 10th in yards per carry, while the Panthers allowed an obscene 6.1 yards per carry since Week 11, by far the worst.

Robinson and Tyler Allgeier get plenty of runways as the Panthers struggle to h...