The Baltimore Ravens have promoted linebackers coach Greg Mattison to defensive coordinator to replace Rex Ryan, sources said on Sunday.
A Monday afternoon news conference was planned to announce the hiring, The Associated Press reported.
Also promoted was special assistant Vic Fangio, who will become the assistant head coach/defense and coach linebackers, the sources said.
Mattison had been a longtime college defensive coach -- most recently for the University of Florida -- before he joined Ravens coach John Harbaugh's staff prior to the 2008 season.
Ravens officials could not be reached for comment late Sunday night.