The Broncos announced on Monday that two running backs will be placed on IR. Andre Hall (left hand) and Michael Pittman (neck) were both placed on the reserve/injured list. Both players were injured during Denver’s game against Miami on Sunday.

Pittman has been the starter at running back for the past three games, and his 320 yards on 76 carries leads the team. He has also caught 10 passes for 112 yards. He has been into the endzone four times on the ground. Pittman is an 11-year pro who has seen time in all eight games this season.

Hall, who averaged 4.9 yards per carry in 2007, has rushed 35 times for 144 yards this season. He has also caught three passes for 25 yards and returned 21 kickoffs for an average of 22.3 yards per return. In his second year with the Broncos, Hall has seen time in all eight games this season.

The Broncos also signed Matthias Askew to the practice squad. Askew is a third-year defensive tackle who joins the Broncos’ practice squad after competing in the Redskins’ 2008 training camp. Selected by Cincinnati in the fourth round of the 2004 NFL Draft, Askew has appeared in six career games — all with the Bengals — and owns six tackles along with one forced fumble.