Texans quarterback Matt Schaub has a multifaceted passing game at his control. Schaub can drop back and go to Pro Bowl wide receiver Andre Johnson (20 receptions for 222 yards in 2013), pictured above; rookie DeAndre Hopkins (12 catches for 183 yards and one touchdown); or tight ends Owen Daniels (seven catches for 91 yards and three touchdowns) and Garrett Graham (seven catches for 57 yards and two touchdowns). The Texans rank ninth in the NFL in passing offense, racking up 304.5 yards per game. The Ravens will need sound coverage and tackling in the open field against this group. The secondary needs to have a mistake-free game, especially rookie free safety Matt Elam, who faces a severe test in his second NFL start. If the Ravens focus too much on containing Johnson, it could be Hopkins who hurts the Ravens downfield. The best way for the Ravens to stop the Texans' aerial attack is to pressure Schaub, who has thrown three interceptions this season and been sacked four times. Pro Bowl rush outside linebacker Terrell Suggs could exploit a mismatch against backup left offensive tackle Ryan Harris, who will start if standout tackle Duane Brown (toe) sits out the game. Suggs and Pro Bowl strong-side linebacker Elvis Dumervil already have combined for four sacks this season.