The Baltimore Ravens and Seattle Seahawks both experienced boosts in the standings through Week 13 triumphs.
To stay in their respective places in the AFC and NFC, the two teams have to pass Week 14 road tests against franchises in playoff contention.
John Harbaugh's team visits the Buffalo Bills, who are looking for a second straight statement win after a Thanksgiving Day triumph over the Dallas Cowboys.
Russell Wilson and Co. head south to face the Los Angeles Rams Sunday night. The Seahawks sit three games ahead of the Rams in the NFC West, but Sean McVay's side still has life in the NFC wild-card hunt.