Donatell now returns to coach the Broncos for the third time in his career.
I'm sure there will be an official release announcing the news later this week.
The Broncos named Vic Fangio their new head coach last week.
A source said Tuesday night that Donatell had agreed to become the Broncos defensive coordinator under Fangio, the former Bears defensive coordinator who took the head-coaching job in Denver last week.
Pregnant duchess laughs after being called 'a fat lady' during charity visit
Meghan has taken up the post of Patron to support the education and animal welfare work of Mayhew. During the visit Meghan , a keen dog lover, spoke about her own rescue dogs.
"Munchak has spent 19 of his last 22 seasons guiding the offensive lines in Tennessee (1997-2010) and Pittsburgh (2014-18)".
We've seen it with Norv and Scott Turner in Minnesota, and Mike Zimmer's son, Adam, is the Vikings linebackers coach. He returned to Denver in 2015, and the Broncos went on to defeat the Panthers 24-10 in Super Bowl 50.
But the Bears' defensive vacancies are expected to attract a great deal of interest considering the team is loaded with young talent and finished No. 1 in the National Football League in points and rushing yards allowed, takeaways and interceptions, lowest opponents' passer (72.9) and three-and-out percentage (26.8). Outside linebackers coach Brandon Staley also joined Fangio in Denver, safeties coach Roy Anderson was sacked over the weekend and inside linebackers coach Glenn Pires was informed he will not return. They won the Super Bowl in his first year. Inside linebackers coach Glenn Pires and assistant defensive backs coach Roy Anderson will also not be retained, according to multiple reports.
Donatell fills the role held the past two seasons by Joe Woods, who the 49ers will reportedly hire.