McCluster will be out for 2-3 weeks due to his knee injury suffered during Thursday's game.
McCluster took a hard hit to his knee during Thursday's loss to the Jaguars, which will force him to miss the Titans' next couple games or so. With him out, Antonio Andrews will likely enjoy an expanded role, while rookie David Cobb and Bishop Sankey also factor into the mix.
The Titans signed defensive lineman Al Woods to a two-year deal Wednesday, ending his two-year run with the Steelers. Woods' contract will pay him $5 million over two years, according to the Pittsburgh Post-Gazette.
Wright returned to practice Wednesday for the first time since suffering a knee injury back on November 1.
In the process, interim coach Mike Mularkey said that Wright looked good, which bodes well for the wideout's chances of returning to action Sunday against the Raiders. "He looked much better than I was expecting, he really did," Mularkey said Wednesday. "We still limited him to a specific number of plays, just to make sure we are not overusing him."
Linebacker Terence Garvin, who made his first start in Week 16, won't make his second on Sunday. He is the lone Steelers player ruled out for the game against the Browns. Fellow linebacker Jason Worilds (abdomen) is questionable while the other injured are probable.
Harrison (knee) has been ruled out for Sunday's game, Chris Adamski of the Tribuen Review reports.
Harrison didn't practice all week, so this news doesn't come as much of a surprise. The 37-year-old will miss his first game of the season, but with the Steelers slated for a bye next week, Harrison will have plenty of time to recuperate for the next matchup against the Seahawks in Week 12.
Spaeth caught his only target for four yards in the Steelers' 16-10 loss to the Bengals on Sunday.
Used primarily as a blocker and on special teams, the catch was the first for Spaeth, and only his second target of the season. Even if Heath Miller were to miss significant playing time, Spaeth is not worth a spot on fantasy rosters.
Third-year safety Shamarko Thomas has the unenviable task of replacing future Hall of Famer Troy Polamalu in the Steelers defensive backfield, but Thomas is trying his best to fill some very big shoes, per The Associated Press.