The Indianapolis Colts filed a request to interview Buffalo Bills defensive coordinator Leslie Frazier for their open head coaching position, a source told NFL Network's Ian Rapoport.
Colts owner Jim Irsay is a big fan of Frazier, according to Rapoport.
Frazier has held various coaching roles in the NFL since first becoming the Philadelphia Eagles defensive backs coach in 1999. He got his first head coaching experience on an interim basis with the Minnesota Vikings in 2010, and then held the official title from 2011-13, over which time the Vikings went 18-29-1 with one wild-card appearance.
He spent the 2017 season in Buffalo,
