ENGLEWOOD, Colo. (AP) — The Denver Broncos have placed middle linebacker Nate Irving on season-ending injured reserve and claimed rookie linebacker Todd Davis off waivers from the New Orleans Saints.

Irving was having the best season of his four-year career when he tore his right MCL at New England on Nov. 2. His timeline for returning to the field was four to six weeks.

READ MORE: Check Out The Winning Entries In The Iconic Colorado Driver's License Contest

With fellow linebacker Danny Trevathan (leg) already designated to return next month, the Broncos had to put Irving on season-ending IR on Thursday.

Irving finished the season with 44 tackles, including six for a loss, and a sack. He was replaced by Steven Johnson in the starting lineup.

Davis, from Sacramento State, was a special teams player for the Saints.

READ MORE: 'We Heard Bam! Bam! Bam!': 11-Year-Old Boy Shot In Aurora Sunday Night

More Broncos Stories

[display-posts category=”broncos” wrapper=”ul” posts_per_page=”10″]

By ARNIE STAPLETON, AP Pro Football Writer

MORE NEWS: Without Active Spring Snow, State's Snowpack On Track To Be Below Average

(© Copyright 2014 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)