EUGENE, Ore. -- Oregon has received formal notice of the NCAA investigation into its program's use of recruiting services.

The NCAA relayed the official Notice of Inquiry in a telephone call to Oregon president Richard Lariviere this week, the Ducks announced Saturday before Oregon's game against Missouri State.

The inquiry is the result of reports that surfaced this spring concerning payments Oregon made to recruiting services, including a $25,000 payment to Willie Lyles and Houston-based Complete Scouting Services.

When Oregon released some of what it said Lyles had provided for the fee, the material was largely outdated.

Oregon athletic director Rob Mullens says the notice was anticipated and part of the next stage of the investigation.