Broncos make switch at linebacker

ENGLEWOOD, Colo. -- The Denver Broncos have signed free-agent linebacker Johnny Williams and waived linebacker Nick Greisen.

Williams spent last season on Pittsburgh's practice squad after spending the preseason in Jacksonville, where the Jaguars had signed him as a college free agent out of Kentucky.

Greisen is a ninth-year pro out of Wisconsin who started 34 games in his NFL career with the New York Giants, Jaguars and Baltimore Ravens. He was drafted by the Giants in 2002.

Greisen joined the Broncos last year but a knee injury in training camp sidelined him for the season.