BEREA, Ohio -- Browns starting running back Ben Tate will miss this week's home opener against New Orleans with a knee sprain, moving rookies Terrance West and Isaiah Crowell up the depth chart.

Cleveland coach Mike Pettine said Tate "will miss some time." He did not provide any details on the injury and only confirmed Tate will miss Sunday's game against the Saints.

Tate was injured during the first half in the season-opening loss at Pittsburgh. In his absence, West and Crowell performed well in the second half. West, a third-round draft pick from Towson, rushed for 100 yards, and Crowell, an undrafted free agent from Alabama State, scored two touchdowns.

Pettine said West will start in Tate's spot and their play last week gives the coaching staff some comfort.

"It was encouraging, but they need to be able to take the next step, and this is another challenge for them, to go against this type of defence and it's nothing that either one of those guys have seen before," Pettine said before Wednesday's practice. "It will be a good test for them."

Pettine also said Pro Bowl tight end Jordan Cameron reinjured his right shoulder against the Steelers. Pettine said Cameron and linebacker Barkevious Mingo (shoulder) will both be limited in practice and are day to day.

Cameron landed on his shoulder after catching a 47-yard pass.

Defensive lineman Desmond Bryant (wrist surgery) and offensive lineman Paul McQuistan (ankle) returned to practice and took part in drills during the period it was open to the media.

Pro Bowl left tackle Joe Thomas was not at practice, and the team did not have a reason for him to be missing.