In a defensive battle, Sachem East was the victor against Northport in the Suffolk County Division I quarterfinals.
The Arrows (8-1) beat the Tigers, 13-10, and advance to the Suffolk semifinals next weekend.
Third-seeded Sachem East will play No. 4 Lindenhurst, the team who gave them their only loss of the season.
Lindenhurst will enter the semifinals with victories over Sachem North and William Floyd in consecutive weeks.
Sachem East had touchdowns from Josh Hanna and Jovan Abraham in the playoff win.
Senior linebacker Connor Farrell had two interceptions and 12 tackles for Sachem East.
Drew Alfano had one interception and 10 tackles also for Sachem East.
This will be the third time in program history that Sachem East will play in the football semifinals and the first since 2012.