The Pittsburgh Steelers received troubling news about their first-round pick from the 2012 NFL Draft, as offensive lineman David DeCastro is going to miss 3-5 months with a torn MCL and a dislocated kneecap, according to Pro Football Talk.

DeCastro suffered the injury during the team's preseason game with the Buffalo Bills Saturday when his right leg buckled backwards while he was engaged with a defender.

This is a huge blow to the team, which was depending on the NFL-ready prospect to help improve the Steelers' offensive line in 2012. The offensive line appears to be suspect yet again after the injury, as Pete Wilmoth of SB Nation Pittsburgh writes:

"Fellow rookie lineman Mike Adams does not appear ready to take on NFL-caliber pass rushers and is battling some (infinitely less severe) knee issues of his own, leaving Max Starks to protect quarterback Ben Roethlisberger's blind side at left tackle. Meanwhile, with and without DeCastro last night, the interior line struggled against the Bills' terrific front four."

Wilmoth says that fans should expect to see more quick passes that will keep from Roethlisberger relying on the line to allow plays to develop.

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