Northside overwhelmed Greenbrier from the start Friday night on the way to an easy 44-7 win.
The Eagles (5-0, 4-0 in Region 2-AAAAA) scored on a safety 15 seconds into the game and rolled up 23 first-quarter points.
Northside led 37-0 at the half.
The Eagles returned two interceptions for touchdowns in the win.
Marcus Jolly rushed for a touchdown and caught a touchdown pass. Tobias Oliver rushed for touchdown and passed for another.