Forty minutes before kickoff, Duxbury High senior captain Grant Kramer was a hulking presence as his teammates stretched and went through their pregame snaps.
The entire time, he was thinking about how he could set an example.
The answer came in the final two minutes of the nonleague matchup, when Abington, trailing 20-13, recovered a fumble that was within field goal range. The 6-foot-5, 270-pound Kramer broke through the line for back-to-back momentum-halting tackles as Duxbury held on for a 20-13 victory, its 43d straight in the regular season.
Duxbury coach Dave Maimaron said Kramer has always played with intensity and an edge, finishing off every block or tackle — traits very similar to his older brother, Aaron, a 6-7, 299-pound tackle who is now a junior at Boston College. Full story for BostonGlobe.com subscribers.