Bruce Gradkowski

Hard-fought victory turns unsettling after QB Ben Roethlisberger is injured

ST. LOUIS The worst injury the Steelers could imagine occurred Sunday and they received good news and bad news after Ben Roethlisberger had an MRI Sunday night in Pittsburgh.

Roethlisberger, the player who most defines their chances at another championship, departed the game Sunday in the third quarter with a left knee injury. An MRI showed he has a sprained MCL and a bone bruise, which means he should return this season but likely will miss 4 to 6 weeks, according to a source close to the situation.

The Steelers fate now rests in the hands of backup quarterback Mike Vick, halfback Le'Veon Bell, wide receiver Antonio Brown and a defense that for the second week...