Mike Stoops back on Oklahoma's staff soon

Former Arizona coach Mike Stoops will join the Oklahoma staff — and his brother, coach Bob Stoops — as co-defensive coordinator, a move that will be announced as soon as Wednesday, sources told colleague Joe Schad.

Willie Martinez, an assistant who coached the defensive backs, is leaving the staff.

Stoops was the coach at Arizona from 2004 to 2011, going 41-50 overall, 27-38 in the Pac-12.

Stoops took the Wildcats to three consecutive bowls before being released after a 1-5 start this past season.

This move's been long-rumored, and the rumors peaked when Stoops showed up on Oklahoma's sideline in its win against Iowa in the Insight Bowl.

Bob Stoops had said he would welcome working with his brother again, but that there wasn't a spot available on the staff.

With Martinez's departure soon, it looks like there will be a spot for Stoops to join. He was on Stoops' staff from 1999-2003, helping the Sooners win the 2000 national championship.