EUGENE — Former Oregon coach Chip Kelly joined UO officials in a hearing before the NCAA committee on infractions last Friday in Dallas,

Kelly maintained that Oregon used Willie Lyles' scouting service

Sports Illustrated reported, citing an anonymous source.

The infractions committee is expected to issue its final ruling in the Oregon case "in the next 60 to 90 days," SI reported.

A UO spokesperson said the school would not comment on the case until the infractions committee issues its final report.

The NCAA began investigating Oregon's $25,000 payment to Lyles' Complete Scouting Service in March 2011.

Last week,

to The Oregonian related to the NCAA's investigation of the Ducks' use of scouting services.

In a letter obtained exclusively by The Oregonian, and signed by UO president Michael Gottfredson and athletic director Rob Mullens on Oct. 30, 2012, Oregon agreed with NCAA enforcement officials that the violations committed in the case were "major."

Oregon then proposed, among other penalties, a two-year probation and a loss of three total scholarships over the next three seasons. However, the NCAA infractions committee will make its own ruling on penalties.

After the infractions committee makes its ruling, Oregon could then choose to make an appeal to

.