Englewood, CO (SportsNetwork.com) - Denver Broncos tight end Julius Thomas was listed as questionable for Sunday's game against the Buffalo Bills, while running backs Montee Ball and Ronnie Hillman were ruled out.

Thomas, who leads the NFL with 12 receiving touchdowns, was out of the lineup the past two weeks due to a sprained left ankle and was a limited participant in practice this week.

Ball will miss a third straight game with a groin injury that has kept the second-year Wisconsin product out of Denver's lineup for seven games already this season.

Hillman, meanwhile, suffered a foot injury during a 41-17 win over Oakland on Nov. 9 and has been out for the previous three weeks.

Neither running back practiced at all this week.

Cornerback Kayvon Webster (shoulder) and wide receiver Cody Latimer (concussion) were also ruled out, while tight end Jacob Tamme (ribs), safety Quinton Carter (knee), defensive tackle Terrance Knighton (elbow) and defensive end Quanterus Smith (ribs) were listed as questionable.