Ben Roethlisberger suffered a sprained MCL in his left knee and is expected to miss four to six weeks.

The Pittsburgh Steelers were relieved Roethlisberger didn't tear his ACL.

Besides the MCL sprain, Roethlisberger also suffered a bone bruise, according to the source.

"Ben is a competitor and we are confident he will do everything in his power to return at the appropriate time," Mike Tomlin said Monday in the statement.

Ben Roethlisberger will miss at least four weeks with a knee injury. 

The Pittsburgh Steelers are guarded optimistic that Roethlisberger didn't suffer a torn ACL.

Roethlisberger was seen on crutches following the game, a 12-6 victory, and is scheduled to have an MRI. 

With 5:35 left in the third quarter, Rams safety Mark Barron sacked Roethlisberger after coming on a blitz, hitting him just below his left knee. Roethlisberger went down and immediately grabbed at the knee before the play was whistled dead.

Michael Vick replaced Roethlisberger at quarterback.

Martavis Bryant is in Houston working with renowned substance-abuse counselor John Lucas while serving his four-game suspension.

Lucas works with many prominent athletes with off-field issues.

Bryant caught eight touchdowns as a rookie and received a four-game suspension after multiple failed marijuana tests.

Shortly after Bryant's suspension in late August, Mike Tomlin said Bryant has problems "bigger than football" and that he would support his player through the process.

The New England Patriots have been cleared of wrongdoing in regards to the audio interference experienced by the Pittsburgh Steelers in their Week 1 game.

Spokesman Michael Signora said Friday that the league believes the problem "involved no manipulation by any individual and that the Patriots had nothing to do with it."

The statement said the problem was "entirely attributable to an electrical issue made worse by the inclement weather" and that the league "will continue to review the matter to determine if there are technical steps that can be taken to avoid similar problems from occurring in other games."

Mike Tomlin said communication problems are "always the case" when playing at New England. 

But the Steelers decided not to file a formal complaint.

The Pittsburgh Steelers' coach-to-coach headsets picked up the New England Patriots' radio broadcast for most of the first of Week 1's game.

The Patriots won the game by a final score of 28-21.

Mike Tomlin expressed frustration with how headset issues have occurred repeatedly at New England.

"That's always the case. Yes. I said what I said," Tomlin said.

Blake Jones, NFL director of football operations, went down to the field to help with the headsets. The league described the reception problem as "intermittent."

When asked if he got a satisfactory resolution, Tomlin said: "Eventually.'' Tomlin is a member of the league's competition committee.

New England's coaches were not required to shut down their headsets during the repairs.

The Patriots claimed to have suffered from issues as well.

The Pittsburgh Steelers have restructured the contracts of Antonio Brown, Heath Miller and Shaun Suisham to create $6 million in cap room.

The Steelers will use the newly created space to offset a large number of injured players counting against the salary cap.

Brown will make $8 million this season.