Upon Further Review: Ravens Week 16

BALTIMORE -- A review of four hot issues from the Baltimore Ravens' 41-7 loss to the New England Patriots.

Home-field horror: Sunday's loss represents the largest margin of defeat for the Ravens at home. It's surprising that this happened under John Harbaugh. Since he took over as coach, the Ravens have posted the second-best home record in the NFL. This was only the ninth loss at M&T Bank Stadium for Baltimore in the six-year Harbaugh era. Consider this: The Ravens lost by a total of 37 points in their previous eight home losses, but on Sunday they lost by 34 points. This ended the Ravens' string of 10 straight home finales won, which was the NFL's longest active streak. Baltimore hadn't lost its final regular-season home game since 2002.

Picks into points: Joe Flacco threw two interceptions, and the Patriots converted them into 10 points. For the season, Flacco's 19 interceptions have led to 61 points, including two returned for touchdowns. Teams have scored seven touchdowns off Flacco interceptions, which account for 21 percent of the touchdowns given up by the Ravens this season. The 19 interceptions are seven more than Flacco has ever thrown in a season. This was the sixth time this season that Flacco threw multiple interceptions, and the Ravens are 2-4 in those games.

Falling from first: Three games ago, the Ravens were tied for first in red zone defense. Not anymore. Baltimore has allowed teams to score touchdowns on their past six trips inside the Ravens' 20-yard line. The Patriots reached the end zone on all three of their drives in the red zone. In the first 12 games of the season, the Ravens gave up 12 touchdowns on 32 possessions inside the 20-yard line (37.5 percent). They have allowed six touchdowns in the red zone the past three weeks. Another disturbing trend is giving up scores on the ground. The Ravens had led the NFL with one rushing touchdown allowed in the first 11 games. Baltimore now has allowed a rushing touchdown in each of the past four games, including two touchdowns by Patriots running back LeGarrette Blount.

Flag frenzy: The Ravens were penalized nine times, one shy of their season high. In the first quarter alone, the Ravens had 50 yards in penalties and 27 yards of offense. The costliest flag was Jimmy Smith's 34-yard pass-interference penalty, which led to the Patriots' first touchdown. The Ravens now have 106 penalties on the season, which are the seventh-most in the NFL. This is the fourth time in Harbaugh's six seasons that Baltimore has gone over the century mark in penalties.