Ben Roethlisberger Injury: Report states best-case scenario has QB missing 4 weeks

The Pittsburgh Steelers won their Week-3 game against the St. Louis Rams, but it came at a cost as starting QB Ben Roethlisberger went down with a left knee injury during the third quarter. As the vast fan base of the Steelers frets about what the MRI will show, ESPN's Adam Schefter is reporting that the best-case scenario for Roethlisberger would be for him to miss four weeks of action.

Ben Roethlisberger expected to miss at least 4 weeks with knee injury, source tells ESPN. He will undergo an MRI Monday; hoping ACL intact.

— Adam Schefter (@AdamSchefter) September 27, 2015

Ben Roetlisberger could undergo MRI after Steelers return to Pittsburgh tonight, but he is expected to miss minimum of 4 weeks, per source.

— Adam Schefter (@AdamSchefter) September 27, 2015

Roethlisberger is scheduled to have an MRI on Sunday night, and the exact nature of the injury, and it's severity, will not be known until those results come back. Either way, if Schefter's sources are correct, it looks as if the Steelers will be without Roethlisberger for an extended period of time.

If he misses four games, he would miss this Thursday night's game against the Baltimore Ravens, a Monday night game at the San Diego Chargers, a home game against the Arizona Cardinals and a trip to Arrowhead Stadium to play the Kansas City Chiefs.

All of this, however, is merely speculation at this point and, with the short week, Mike Tomlin will address the media Monday at noon to answer any questions surrounding the team's performance on Sunday and Roethlisberger's status moving forward.

UPDATE:

Update on Ben Roethlisberger: expected to be sidelined at least 4 weeks. But hope is that it's not a season-ending injury. Still could be.

— Adam Schefter (@AdamSchefter) September 27, 2015