Tulane’s win against Duke was yet another indication of the strength of the American Conference, which has pulled away considerably from the other Group of Five leagues.

Four American teams remain undefeated (Tulane, Memphis, Navy, North Texas) while the Sun Belt, Mountain West, Mid-American and Conference USA combine for only one (UNLV).

South Florida’s attention-grabbing start came crashing down at Miami last weekend, but Tulane and Memphis have a chance to make big statements as underdogs against SEC opponents on Saturday when the Green Wave plays at Ole Miss and the Tigers host Arkansas.

1. Tulane

Record: 3-0, 0-0 American

Previous rank: 2

Last week: defeated Duke 34-27

This week: at Ole Miss, 2:30 p.m. Saturday (ESPN)

Extra points: If not for a dropped interception by nat

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