Here are Scorebook Live’s Top 25 Southern California high school football rankings for the week of Sept. 23. Our rankings encompass the Southern Section, LA City Section and San Diego Section. The rankings are compiled by Scorebook Live California reporters Connor Morrissette, Bodie DeSilva and Lance Smith.
1. Mater Dei (4-0) at St. John's (Washington DC), 5:30 p.m. Friday
The Monarchs head to our nation's capital following their bye week. Quarterback Bryce Young committed to Alabama over the weekend.
2. St. John Bosco (5-0) bye week
After picking up a 42-10 win in Hawaii against Mililani, the Braves are off this week before Trinity League play begins.
3. Mission Viejo (5-0) vs. Upland, 7 p.m. Friday
Chad Johnson's team dominated Stockton St. Mary's last Friday winning 63-7. The Diablos host Upland on Friday in one of the games of the week.
4. Helix (3-1) vs. Oaks Christian, 7 p.m. Friday
Helix is the top team in San Diego for now after recording wins over Cathedral Catholic and St. Augustine.
5. Cathedral Catholic (4-1) vs. Otay Ranch, 7 p.m. Friday
The Dons' only slip up came against Helix two weeks ago. They'll seek revenge come playoff time.
6. Corona Centennial (3-2) bye week
Corona Centennial is off this week. The Huskies annihilated Long Beach Poly 57-13 last week.
7. JSerra (4-1) bye week
The Lions begin Trinity League play in two weeks at home against Santa Margarita.
8. Grace Brethren (4-0) vs. Westlake, 7 p.m. Friday
Coming off of a bye, Grace hosts Westlake on Friday.
9. Narbonne (4-1) at Lawndale, 7 p.m. Friday
10. St. Augustine (4-1) bye week
The Saints are on the bye following their defeat to Helix.
11. Norco (4-0) vs. Rancho Verde, 7 p.m. Friday
Norco looks to continue its perfect start to the season this week against Rancho Verde.
12. Serra Gardena (3-1) at Cathedral, 7 p.m. Friday
Serra drops just one spot after losing to Narbonne 28-21.
13. Corona del Mar (4-0) vs. San Clemente, 7 p.m. Thursday
CDM's battle with San Clemente will be one of the top games of the week.
14. Servite (3-1) at Notre Dame Sherman Oaks, 7 p.m. Friday
In another game of the week contender, Servite travels to Notre Dame Friday.
15. Calabasas (3-2) vs. Valencia, 7 p.m. Friday
16. Sierra Canyon (4-0) vs. Bakersfield, 7 p.m. Friday
The Trailblazers will try to stay undefeated against an out-of-section opponent.
17. Notre Dame Sherman Oaks (4-0) vs. Servite, 7 p.m. Friday
The Knights face a stiff test against Servite Friday.
18. La Habra (3-2) bye week
La Habra gets a week off before league play begins.
19. Upland (3-1) at Mission Viejo, 7 p.m, Friday
Upland has had two weeks to prepare for Friday's test.
20. Alemany (5-0) bye week
Casey Clausen's team has the week off before beginning Mission League play.
21. San Clemente (5-0) vs. Corona del Mar, 7 p.m. Thursday
Two of Orange County's top teams meet Thursday. One team will suffer its first defeat.
22. Bishop Amat (4-1) bye week
The Lancers return to our Top 25 after a big 45-20 win over Cathedral. They have two weeks to prepare for Alemany.
23. Orange Lutheran (3-2) bye week
Orange Lutheran goes into the bye on a high following a 42-17 road win over Vista Murrieta. The Lancers have two weeks to prepare for Mater Dei.
24. Murrieta Valley (4-0) vs. Buena Park, 7 p.m. Friday
Murrieta Valley beat Oaks Christian by one point last Friday to stay undefeated.
25. Tesoro (5-0) at Poway, 7 p.m. Friday
Tesoro has won all five of its games by multiple scores.