Ben Roethlisberger left Heinz Field on Monday night with his sprained right shoulder in a sling. When he returns ready to play is anybody's guess.
Coach Mike Tomlin called Pittsburgh's franchise quarterback "questionable" but otherwise offered little detail Tuesday, less than 24 hours after Roethlisberger was pounded into the ground by Kansas City Chiefs linebackers Tamba Hali and Justin Houston in the third quarter of Pittsburgh's 16-13 overtime victory.
"He is being evaluated," Tomlin said. "Obviously this injury puts his participation in the questionable category for this week."
Roethlisberger left the game and went to a hospital for an MRI exam. He underwent more tests Tuesday.
If Roethlisberger can't play Sunday against the Baltimore Ravens (7-2), the Steelers (6-3) will turn to veteran Byron Leftwich, who completed 7 of 14 passes for 73 yards in relief Monday as Pittsburgh won its fourth straight game thanks to Shaun Suisham's 23-yard field goal 51 seconds into the extra period.
Leftwich hasn't started since 2009, when he went 0-3 for the Tampa Bay Buccaneers. His last victory came Oct. 8, 2006, when the Jacksonville Jaguars beat the New York Jets 41-0.
The former first-round pick has spent most of the past six years as a backup while dealing with a series of significant injuries. He missed all of last season after breaking his arm in a preseason game and threw seven regular-season passes in 2010 after hurting his knee in training camp.
Bears: With Jay Cutler's status for this week uncertain, veteran quarterback Josh McCown was signed as a potential backup.
Cutler sat out the second half of Sunday's loss to Houston with a concussion. Jason Campbell took over and is expected to start Monday at San Francisco if Cutler can't go.
Broncos: Safety Duke Ihenacho, a former San Jose State player, was waived, creating a roster spot that could be filled by linebacker D.J. Williams.
Williams was reinstated Monday after sitting out the first nine games of the season while serving two separate NFL suspensions.
Jets: Linebacker Aaron Maybin was waived a season after he led the team with six sacks. Maybin was unproductive this year, registering just one tackle without any sacks on a team desperate for a pass-rushing presence. He was inactive for the Jets' game at Seattle on Sunday.
Ex-Seahawk released after arrest: A Municipal Court judge released Jerramy Stevens, saying there was no evidence connecting the former Seahawks tight end to any assault.
Stevens was arrested early Monday on suspicion of assaulting U.S. women's soccer team goalkeeper Hope Solo, according to police and court records in Seattle.
Stevens and Solo had planned to be married Tuesday.