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Grand takeaways were in short supply, but the 2017 college football season kicked off Saturday with a five-game slate.

The favorites recorded a victory in four of the five matchups, so there isn't a stunning result to analyze. Not every victory is the same, however. One ranked team encountered more resistance than expected, though the troubles were partly self-inflicted.

Overall, the 10 teams in action on the opening weekend provided a handful of lessons. We highlighted the coolest moments, top performances and most noteworthy early concerns that stemmed from the first day of Football Bowl Subdivision play.