#4 at #1
#3 at #2
so:
GB at DAL
SEA at ATL
if DET win, they go to DAL, other winner goes to ATL
if SEA win, they go to ATL, other winner goes to DAL
#4 at #1
#3 at #2
so:
HOUS at PATS
PITT at KC
if MIAMI win, they go to PATS, other winner goes to KC
if PITT win, they go to KC, other winner goes to PATS