Third-string quarterback Thaddeus Lewis and backup running back Montario Hardesty are expected to start Sunday when the Browns (5-10) visit the Pittsburgh Steelers (7-8) and their No. 1-ranked defense.

Quarterbacks Brandon Weeden (sprained right shoulder) and Colt McCoy (right shoulder), running back Trent Richardson (left ankle), cornerback Sheldon Brown (concussion) and tight end Jordan Cameron (concussion) didn’t practice today. Weeden, McCoy, Richardson and Brown suffered their injuries Sunday in the Browns’ 34-12 loss to the Denver Broncos. Cameron was hurt Dec. 16 in the Browns’ 38-21 loss to the Washington Redskins.

None of them has practiced this week, and coach Pat Shurmur will likely rule them out this afternoon. He is scheduled to meet with reporters at 12:30 p.m. today.

In addition to Lewis and Hardesty probably entering the starting lineup, second-year cornerback Buster Skrine is expected to start in place of Brown. Rookie Trevin Wade, a seventh-round draft pick, would then serve as the nickel cornerback.

Rookie Brad Smelley, a seventh-round pick, and veteran Alex Smith are in line to receive more playing time with Cameron expected to be sidelined