FIVE THINGS TO WATCH

There haven’t been many tests so far for the teams atop The Associated Press Top 25. For at least two of them, that should soon change.

No. 7 Notre Dame visits No. 3 Georgia on Saturday in the first game of the season to match teams ranked this highly.

The top seven teams in this week’s poll are a combined 20-0 with an average margin of victory of 36.1 points. The only one of those that’s been closer than two scores was fourth-ranked Louisiana State’s 45-38 road win at then-no. 9 Texas — the only previous top-10 matchup so far.

It’s the highest profile of three games matching two ranked teams. No. 11 Michigan visits No. 13 Wisconsin, and eighth-ranked Auburn travels to No. 17 Texas A&M.