Valley (4-0), which was ranked No. 2 in last week's playoff ratings, visits co-No. 3 Meadow Bridge (5-0), which has allowed just eight touchdowns in five games.
The Greyhounds swept a pair of games from the Wildcats last year - both on artificial turf - 30-14 during the regular season at Martin Field in Montgomery and 22-6 in the first round of the playoffs at Laidley Field.
The second game provided veteran Valley coach Benny Hopkins with his first playoff win in 33 years of coaching.
Other key contests this week include:
Fumbles and jumbles
Setbacks to several top-10 teams should juggle the top of the rankings in both Class AAA and AA when the SSAC releases its next of playoff ratings on Tuesday.
In AAA, losses came to co-No. 1 Huntington, No. 3 Martinsburg, No. 6 Capital and No. 10 Parkersburg South.
In AA, the list of victims included No. 2 Keyser, No. 7 Sissonville, co-No. 8s Summers County and Wyoming East and co-No. 10 Philip Barbour.
In Class A, the only member of the top 10 to fall was No. 1 Notre Dame.
Reach Rick Ryan at 304-348-5175 or rickr...@wvgazette.com.