Lions quarterback Matthew Stafford could be in for a rough time Week 11 against the Steelers.

Pittsburgh has been effective against opposing quarterbacks, holding them to 15.22 Fantasy points per game. The team has allowed 10 passing touchdowns through nine games. Pittsburgh has been far more vulnerable on the ground, where they've allowed 12 rushing touchdowns, so Stafford could turn to Reggie Bush more often than usual. 

At the same time, Stafford has been pretty solid this season, scoring at least two touchdowns in all but one game. He has not, however, faced a passing defense as strong as the Steelers. On top of that, Calvin Johnson missed the first two days of practice with a knee injury, and could be more hurt than he's let on. Johnson will play, but Stafford would be limited if Johnson is clearly slowed by the injury. Stafford remains a strong Fantasy play, but he's going up against the toughest defense he's faced all year.