Keys for Eagles defense vs. 49ers offense in Week 13

The 49ers run pre-snap motion on an astounding 80.6 percent of their plays, which ranks second in the NFL.

Philadelphia struggled to adjust in the Super Bowl and you can expect Kyle Shanahan’s group to play on the move early and often.

According to NexGenStats, the 49ers have gained 5,304 yards on the ground when they use motion, which is 848 yards more than the second-place team in the league, the Baltimore Ravens.

According to Next Gen Stats, 46.4 percent of Brock Purdy’s passes are thrown to “open” receivers (defined as at least 3 yards of separation), which ranks fifth amongst qualifying starting quarterbacks in the NFL. For Purdy, 22.6 percent are considered “wide open” (at least 5 yards of separation), which ranks 10th.

Sean Desai’s group has to adjust, communicate and make plays when the Niners are on the move.