The Steelers' 16-13 victory against the Kansas City Chiefs Monday night at Heinz Field might have been a costly as quarterback Ben Roethlisberger was injured in the third quarter and taken to a hospital to be evaluated for a right shoulder injury.
Roethlisberger was sacked by Justin Houston and it appeared he took the crown of a helmet into his shoulder.
"We don't know the status of that as we sit here right now," Steelers coach Mike Tomlin said. "When I get information, you'll get it."
Roethlisberger was replaced by Byron Leftwich, who finished the game and might have to play Sunday night against the Baltimore Ravens. If that's the case, his teammates say the offense is still in good hands.
"Anytime our quarterback goes down you worry about it," receiver Mike Wallace said. "But we have some guys who are capable of stepping in. Ben is one of the best in the game and anytime you lose a guy who is one of the best at any position it hurts you, but we have [Leftwich]and he is capable of running this team."
The Steelers also might have lost Ryan Clark, who was knocked out of the game and had to be evaluated for a possible concussion.
The Steelers released rookie defensive lineman Alameda Ta'amu Monday to make room to sign wide receiver David Gilreath from the practice squad.
Ta'amu, a fourth-round draft pick from the University of Washington, was charged with aggravated assault, aggravated assault by vehicle while driving under the influence and fleeing an officer after an off-duty officer first spotted him driving the wrong way on Fort Pitt Boulevard and then heading over the Smithfield Bridge to the South Side Oct. 14.
Three officers on foot attempted to stop him as he continued to drive erratically down East Carson Street, nearly striking them as they drew their guns and yelled for him to stop.
His SUV struck four parked vehicles, injuring a woman who was sitting in one of them, and finally crashed into a Honda Civic.
It took four officers and two sets of handcuffs to restrain the 6-foot-3, 348-pound defensive lineman, who had a blood alcohol level of 0.196, more than double the legal limit, according to a police complaint.
He also is charged with leaving the scene of an accident, DUI and escape, all misdemeanors, in addition to several summary driving offenses.
The Steelers signed Gilreath, a rookie from Wisconsin, to the 53-man roster to add an extra receiver with Antonio Brown out with an ankle injury.
If Ta'amu clears waivers, he could be re-signed to the practice squad.
The Chiefs scored a touchdown on their second drive of the game -- a 12-yard run by Jamaal Charles that gave them a 7-0 lead with 8:37 remaining in the first quarter.
It marked the first time this season the Chiefs have led in regulation this season.
That was a span of 33 quarters of regulation football that the Chiefs played without a lead.
The previous time they held a lead in regulation was in the season finale last year, a 7-3 win against Denver.
Chiefs quarterback Matt Cassel had the key turnover in overtime when his pass was intercepted by Steelers linebacker Lawrence Timmons deep in his territory. The play led to the winning 23-yard field goal by Shaun Suisham one play later.
"One of their defensive linemen deflected it," Cassel said. "He hit it and it went a direction we didn't want it to go."
That was to Timmons, who rumbled 16 yards to the Chiefs 5. The Steelers then tried the winning kick on first down.
"I think [Cassel] thought the linebacker [Timmons] was rushing, but he dropped back," Chiefs coach Romeo Crennel said. "He made a good play and jumped up to get the ball."
Willie Colon had a tough sequence in the first quarter and it led to the Chiefs' second score of the game, a 22-yard field goal by Ryan Succop.
The Steelers had a first-and-10 at their 28 when Isaac Redman ran off left tackle for what would have been an 8-yard gain.
Colon, however, was penalized for holding, which would have been a 10-yard penalty, but he apparently objected to the call and said something inflammatory to the officials and was penalized for unsportsmanlike conduct.
The second penalty was enforced as half the distance to the goal line and that left the Steelers with a first-and-29 at the 9. One play later Redman fumbled and the Chiefs recovered at the 10.
Colon redeemed himself a little bit, however, on the next drive when he recovered a fumble by tight end Heath Miller, prolonging what turned out to be a field goal drive and the Steelers' first points of the game.
The Steelers had the following players inactive: Charlie Batch, DeMarcus Van Dyke, Rashard Mendenhall, Troy Polamalu, Sylvester Stevenson, Marcus Gilbert and Antonio Brown.
As a result Mike Adams started at right tackle (in place of Gilbert), Redman started at running back, Emmanuel Sanders started at wide receiver and Will Allen started at safety.
The Chiefs inactive players were Brady Quinn, Steve Breaston, Tysyn Hartman, Cyrus Gray, Bryan Kehl, Bryan Mattison and Jerrell Powe.
• Gilreath was put right to work as a punt returner. His first career return went for 3 yards.
• Roethlisberger scrambled for 14 yards to Chiefs 7 in the second quarter and set up the Steelers' first touchdown. That put him over 1,000 rushing yards for his career. He needs 134 passing yards to become just the 25th quarterback in NFL history with at least 29,000 yards passing and 1,000 yards rushing.
Paul Zeise: firstname.lastname@example.org and Twitter: @paulzeise. The Associated Press contributed to this report.